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Finding the Fourth Proportional to 447,591.02, 671,386.52 and 147,991.15

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Solution

The fourth proportional to 447,591.02, 671,386.52 and 147,991.15 is: 221,986.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,591.02 : 671,386.52 = 147,991.15 : x
  2. Step 2: Convert to fraction form
    447,591.02/671,386.52 = 147,991.15/x
  3. Step 3: Cross multiply
    447,591.02x = 671,386.52 × 147,991.15
  4. Step 4: Simplify right side
    447,591.02x = 99,359,264,398.51
  5. Step 5: Solve for x
    x = 99,359,264,398.51/447,591.02
  6. Step 6: Final answer
    x = 221,986.73

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.