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Finding the Fourth Proportional to 338,555.50, 507,864.03 and 89,237.50

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Solution

The fourth proportional to 338,555.50, 507,864.03 and 89,237.50 is: 133,864.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,555.50 : 507,864.03 = 89,237.50 : x
  2. Step 2: Convert to fraction form
    338,555.50/507,864.03 = 89,237.50/x
  3. Step 3: Cross multiply
    338,555.50x = 507,864.03 × 89,237.50
  4. Step 4: Simplify right side
    338,555.50x = 45,320,516,377.13
  5. Step 5: Solve for x
    x = 45,320,516,377.13/338,555.50
  6. Step 6: Final answer
    x = 133,864.36

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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.