Home / 316,387.90-474,484.06-91,764.84

Finding the Fourth Proportional to 316,387.90, 474,484.06 and 91,764.84

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Solution

The fourth proportional to 316,387.90, 474,484.06 and 91,764.84 is: 137,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,387.90 : 474,484.06 = 91,764.84 : x
  2. Step 2: Convert to fraction form
    316,387.90/474,484.06 = 91,764.84/x
  3. Step 3: Cross multiply
    316,387.90x = 474,484.06 × 91,764.84
  4. Step 4: Simplify right side
    316,387.90x = 43,540,955,742.47
  5. Step 5: Solve for x
    x = 43,540,955,742.47/316,387.90
  6. Step 6: Final answer
    x = 137,618.90

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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.