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Finding the Fourth Proportional to 228,001.30, 342,001.95 and 215,754.10

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Solution

The fourth proportional to 228,001.30, 342,001.95 and 215,754.10 is: 323,631.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,001.30 : 342,001.95 = 215,754.10 : x
  2. Step 2: Convert to fraction form
    228,001.30/342,001.95 = 215,754.10/x
  3. Step 3: Cross multiply
    228,001.30x = 342,001.95 × 215,754.10
  4. Step 4: Simplify right side
    228,001.30x = 73,788,322,920.50
  5. Step 5: Solve for x
    x = 73,788,322,920.50/228,001.30
  6. Step 6: Final answer
    x = 323,631.15

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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.