Home / 214,816.32-296,398.80-129,931.56

Finding the Fourth Proportional to 214,816.32, 296,398.80 and 129,931.56

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Solution

The fourth proportional to 214,816.32, 296,398.80 and 129,931.56 is: 179,276.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,816.32 : 296,398.80 = 129,931.56 : x
  2. Step 2: Convert to fraction form
    214,816.32/296,398.80 = 129,931.56/x
  3. Step 3: Cross multiply
    214,816.32x = 296,398.80 × 129,931.56
  4. Step 4: Simplify right side
    214,816.32x = 38,511,558,466.13
  5. Step 5: Solve for x
    x = 38,511,558,466.13/214,816.32
  6. Step 6: Final answer
    x = 179,276.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.