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Finding the Fourth Proportional to 338,772.67, 508,264.25 and 203,985.12

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Solution

The fourth proportional to 338,772.67, 508,264.25 and 203,985.12 is: 306,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,772.67 : 508,264.25 = 203,985.12 : x
  2. Step 2: Convert to fraction form
    338,772.67/508,264.25 = 203,985.12/x
  3. Step 3: Cross multiply
    338,772.67x = 508,264.25 × 203,985.12
  4. Step 4: Simplify right side
    338,772.67x = 103,678,343,008.03
  5. Step 5: Solve for x
    x = 103,678,343,008.03/338,772.67
  6. Step 6: Final answer
    x = 306,041.05

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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.