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Finding the Fourth Proportional to 268,293.30, 402,488.55 and 134,837.70

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Solution

The fourth proportional to 268,293.30, 402,488.55 and 134,837.70 is: 202,280.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,293.30 : 402,488.55 = 134,837.70 : x
  2. Step 2: Convert to fraction form
    268,293.30/402,488.55 = 134,837.70/x
  3. Step 3: Cross multiply
    268,293.30x = 402,488.55 × 134,837.70
  4. Step 4: Simplify right side
    268,293.30x = 54,270,630,358.34
  5. Step 5: Solve for x
    x = 54,270,630,358.34/268,293.30
  6. Step 6: Final answer
    x = 202,280.98

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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.