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Finding the Fourth Proportional to 487,607.44, 731,443.96 and 188,090.50

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Solution

The fourth proportional to 487,607.44, 731,443.96 and 188,090.50 is: 282,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,607.44 : 731,443.96 = 188,090.50 : x
  2. Step 2: Convert to fraction form
    487,607.44/731,443.96 = 188,090.50/x
  3. Step 3: Cross multiply
    487,607.44x = 731,443.96 × 188,090.50
  4. Step 4: Simplify right side
    487,607.44x = 137,577,660,158.38
  5. Step 5: Solve for x
    x = 137,577,660,158.38/487,607.44
  6. Step 6: Final answer
    x = 282,148.40

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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.