Home / 315,505.38-473,258.85-125,981.17

Finding the Fourth Proportional to 315,505.38, 473,258.85 and 125,981.17

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Solution

The fourth proportional to 315,505.38, 473,258.85 and 125,981.17 is: 188,972.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,505.38 : 473,258.85 = 125,981.17 : x
  2. Step 2: Convert to fraction form
    315,505.38/473,258.85 = 125,981.17/x
  3. Step 3: Cross multiply
    315,505.38x = 473,258.85 × 125,981.17
  4. Step 4: Simplify right side
    315,505.38x = 59,621,703,635.85
  5. Step 5: Solve for x
    x = 59,621,703,635.85/315,505.38
  6. Step 6: Final answer
    x = 188,972.07

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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.