Home / 279,654.08-385,926-152,330.72

Finding the Fourth Proportional to 279,654.08, 385,926 and 152,330.72

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Solution

The fourth proportional to 279,654.08, 385,926 and 152,330.72 is: 210,218.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,654.08 : 385,926 = 152,330.72 : x
  2. Step 2: Convert to fraction form
    279,654.08/385,926 = 152,330.72/x
  3. Step 3: Cross multiply
    279,654.08x = 385,926 × 152,330.72
  4. Step 4: Simplify right side
    279,654.08x = 58,788,385,446.72
  5. Step 5: Solve for x
    x = 58,788,385,446.72/279,654.08
  6. Step 6: Final answer
    x = 210,218.23

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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.