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Finding the Fourth Proportional to 315,357.47, 473,098.50 and 115,679.70

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Solution

The fourth proportional to 315,357.47, 473,098.50 and 115,679.70 is: 173,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,357.47 : 473,098.50 = 115,679.70 : x
  2. Step 2: Convert to fraction form
    315,357.47/473,098.50 = 115,679.70/x
  3. Step 3: Cross multiply
    315,357.47x = 473,098.50 × 115,679.70
  4. Step 4: Simplify right side
    315,357.47x = 54,727,892,550.45
  5. Step 5: Solve for x
    x = 54,727,892,550.45/315,357.47
  6. Step 6: Final answer
    x = 173,542.40

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1.5x scale

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.