Home / 210,532.38-315,785.61-70,279.26

Finding the Fourth Proportional to 210,532.38, 315,785.61 and 70,279.26

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Solution

The fourth proportional to 210,532.38, 315,785.61 and 70,279.26 is: 105,414.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,532.38 : 315,785.61 = 70,279.26 : x
  2. Step 2: Convert to fraction form
    210,532.38/315,785.61 = 70,279.26/x
  3. Step 3: Cross multiply
    210,532.38x = 315,785.61 × 70,279.26
  4. Step 4: Simplify right side
    210,532.38x = 22,193,178,989.45
  5. Step 5: Solve for x
    x = 22,193,178,989.45/210,532.38
  6. Step 6: Final answer
    x = 105,414.56

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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.