Home / 279,659.08-385,932.90-152,335.72

Finding the Fourth Proportional to 279,659.08, 385,932.90 and 152,335.72

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Solution

The fourth proportional to 279,659.08, 385,932.90 and 152,335.72 is: 210,225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,659.08 : 385,932.90 = 152,335.72 : x
  2. Step 2: Convert to fraction form
    279,659.08/385,932.90 = 152,335.72/x
  3. Step 3: Cross multiply
    279,659.08x = 385,932.90 × 152,335.72
  4. Step 4: Simplify right side
    279,659.08x = 58,791,366,193.19
  5. Step 5: Solve for x
    x = 58,791,366,193.19/279,659.08
  6. Step 6: Final answer
    x = 210,225.13

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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.