Home / 315,640.35-473,527.02-102,391.61

Finding the Fourth Proportional to 315,640.35, 473,527.02 and 102,391.61

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Solution

The fourth proportional to 315,640.35, 473,527.02 and 102,391.61 is: 153,608.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,640.35 : 473,527.02 = 102,391.61 : x
  2. Step 2: Convert to fraction form
    315,640.35/473,527.02 = 102,391.61/x
  3. Step 3: Cross multiply
    315,640.35x = 473,527.02 × 102,391.61
  4. Step 4: Simplify right side
    315,640.35x = 48,485,195,140.12
  5. Step 5: Solve for x
    x = 48,485,195,140.12/315,640.35
  6. Step 6: Final answer
    x = 153,608.99

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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.