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Finding the Fourth Proportional to 502,403.40, 753,386.40 and 165,313.80

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Solution

The fourth proportional to 502,403.40, 753,386.40 and 165,313.80 is: 247,898.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,403.40 : 753,386.40 = 165,313.80 : x
  2. Step 2: Convert to fraction form
    502,403.40/753,386.40 = 165,313.80/x
  3. Step 3: Cross multiply
    502,403.40x = 753,386.40 × 165,313.80
  4. Step 4: Simplify right side
    502,403.40x = 124,545,168,652.32
  5. Step 5: Solve for x
    x = 124,545,168,652.32/502,403.40
  6. Step 6: Final answer
    x = 247,898.74

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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.