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Finding the Fourth Proportional to 438,444.60, 657,666.90 and 202,248.60

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Solution

The fourth proportional to 438,444.60, 657,666.90 and 202,248.60 is: 303,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,444.60 : 657,666.90 = 202,248.60 : x
  2. Step 2: Convert to fraction form
    438,444.60/657,666.90 = 202,248.60/x
  3. Step 3: Cross multiply
    438,444.60x = 657,666.90 × 202,248.60
  4. Step 4: Simplify right side
    438,444.60x = 133,012,209,791.34
  5. Step 5: Solve for x
    x = 133,012,209,791.34/438,444.60
  6. Step 6: Final answer
    x = 303,372.90

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1.5x scale

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.