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Finding the Fourth Proportional to 280,234.59, 386,732.22 and 159,393.24

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Solution

The fourth proportional to 280,234.59, 386,732.22 and 159,393.24 is: 219,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,234.59 : 386,732.22 = 159,393.24 : x
  2. Step 2: Convert to fraction form
    280,234.59/386,732.22 = 159,393.24/x
  3. Step 3: Cross multiply
    280,234.59x = 386,732.22 × 159,393.24
  4. Step 4: Simplify right side
    280,234.59x = 61,642,501,558.19
  5. Step 5: Solve for x
    x = 61,642,501,558.19/280,234.59
  6. Step 6: Final answer
    x = 219,967.50

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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.