Home / 319,732.20-479,598.35-162,005.76

Finding the Fourth Proportional to 319,732.20, 479,598.35 and 162,005.76

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Solution

The fourth proportional to 319,732.20, 479,598.35 and 162,005.76 is: 243,008.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,732.20 : 479,598.35 = 162,005.76 : x
  2. Step 2: Convert to fraction form
    319,732.20/479,598.35 = 162,005.76/x
  3. Step 3: Cross multiply
    319,732.20x = 479,598.35 × 162,005.76
  4. Step 4: Simplify right side
    319,732.20x = 77,697,694,376.47
  5. Step 5: Solve for x
    x = 77,697,694,376.47/319,732.20
  6. Step 6: Final answer
    x = 243,008.66

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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.