Home / 206,300.58-284,788.09-129,931.91

Finding the Fourth Proportional to 206,300.58, 284,788.09 and 129,931.91

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Solution

The fourth proportional to 206,300.58, 284,788.09 and 129,931.91 is: 179,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,300.58 : 284,788.09 = 129,931.91 : x
  2. Step 2: Convert to fraction form
    206,300.58/284,788.09 = 129,931.91/x
  3. Step 3: Cross multiply
    206,300.58x = 284,788.09 × 129,931.91
  4. Step 4: Simplify right side
    206,300.58x = 37,003,059,829.29
  5. Step 5: Solve for x
    x = 37,003,059,829.29/206,300.58
  6. Step 6: Final answer
    x = 179,364.79

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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.