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Finding the Fourth Proportional to 356,462.80, 534,809.40 and 238,267.60

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Solution

The fourth proportional to 356,462.80, 534,809.40 and 238,267.60 is: 357,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,462.80 : 534,809.40 = 238,267.60 : x
  2. Step 2: Convert to fraction form
    356,462.80/534,809.40 = 238,267.60/x
  3. Step 3: Cross multiply
    356,462.80x = 534,809.40 × 238,267.60
  4. Step 4: Simplify right side
    356,462.80x = 127,427,752,195.44
  5. Step 5: Solve for x
    x = 127,427,752,195.44/356,462.80
  6. Step 6: Final answer
    x = 357,478.40

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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.