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Finding the Fourth Proportional to 243,807.06, 336,481.65 and 136,404.30

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Solution

The fourth proportional to 243,807.06, 336,481.65 and 136,404.30 is: 188,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,807.06 : 336,481.65 = 136,404.30 : x
  2. Step 2: Convert to fraction form
    243,807.06/336,481.65 = 136,404.30/x
  3. Step 3: Cross multiply
    243,807.06x = 336,481.65 × 136,404.30
  4. Step 4: Simplify right side
    243,807.06x = 45,897,543,931.10
  5. Step 5: Solve for x
    x = 45,897,543,931.10/243,807.06
  6. Step 6: Final answer
    x = 188,253.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.