Home / 243,000.28-364,511.40-74,508.31

Finding the Fourth Proportional to 243,000.28, 364,511.40 and 74,508.31

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Solution

The fourth proportional to 243,000.28, 364,511.40 and 74,508.31 is: 111,765.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,000.28 : 364,511.40 = 74,508.31 : x
  2. Step 2: Convert to fraction form
    243,000.28/364,511.40 = 74,508.31/x
  3. Step 3: Cross multiply
    243,000.28x = 364,511.40 × 74,508.31
  4. Step 4: Simplify right side
    243,000.28x = 27,159,128,389.73
  5. Step 5: Solve for x
    x = 27,159,128,389.73/243,000.28
  6. Step 6: Final answer
    x = 111,765.83

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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.