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Finding the Fourth Proportional to 438,505.20, 657,757.80 and 248,892.30

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Solution

The fourth proportional to 438,505.20, 657,757.80 and 248,892.30 is: 373,338.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,505.20 : 657,757.80 = 248,892.30 : x
  2. Step 2: Convert to fraction form
    438,505.20/657,757.80 = 248,892.30/x
  3. Step 3: Cross multiply
    438,505.20x = 657,757.80 × 248,892.30
  4. Step 4: Simplify right side
    438,505.20x = 163,710,851,684.94
  5. Step 5: Solve for x
    x = 163,710,851,684.94/438,505.20
  6. Step 6: Final answer
    x = 373,338.45

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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.