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Finding the Fourth Proportional to 447,264.77, 670,840.55 and 147,671.89

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Solution

The fourth proportional to 447,264.77, 670,840.55 and 147,671.89 is: 221,489.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,264.77 : 670,840.55 = 147,671.89 : x
  2. Step 2: Convert to fraction form
    447,264.77/670,840.55 = 147,671.89/x
  3. Step 3: Cross multiply
    447,264.77x = 670,840.55 × 147,671.89
  4. Step 4: Simplify right side
    447,264.77x = 99,064,287,814.58
  5. Step 5: Solve for x
    x = 99,064,287,814.58/447,264.77
  6. Step 6: Final answer
    x = 221,489.14

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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.