Home / 487,895.40-731,259.90-251,116.20

Finding the Fourth Proportional to 487,895.40, 731,259.90 and 251,116.20

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Solution

The fourth proportional to 487,895.40, 731,259.90 and 251,116.20 is: 376,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,895.40 : 731,259.90 = 251,116.20 : x
  2. Step 2: Convert to fraction form
    487,895.40/731,259.90 = 251,116.20/x
  3. Step 3: Cross multiply
    487,895.40x = 731,259.90 × 251,116.20
  4. Step 4: Simplify right side
    487,895.40x = 183,631,207,300.38
  5. Step 5: Solve for x
    x = 183,631,207,300.38/487,895.40
  6. Step 6: Final answer
    x = 376,374.13

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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.