Home / 315,789.12-473,784.80-113,248.76

Finding the Fourth Proportional to 315,789.12, 473,784.80 and 113,248.76

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Solution

The fourth proportional to 315,789.12, 473,784.80 and 113,248.76 is: 169,909.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,789.12 : 473,784.80 = 113,248.76 : x
  2. Step 2: Convert to fraction form
    315,789.12/473,784.80 = 113,248.76/x
  3. Step 3: Cross multiply
    315,789.12x = 473,784.80 × 113,248.76
  4. Step 4: Simplify right side
    315,789.12x = 53,655,538,171.68
  5. Step 5: Solve for x
    x = 53,655,538,171.68/315,789.12
  6. Step 6: Final answer
    x = 169,909.39

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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.