Home / 279,450.32-385,641.50-152,125.88

Finding the Fourth Proportional to 279,450.32, 385,641.50 and 152,125.88

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Solution

The fourth proportional to 279,450.32, 385,641.50 and 152,125.88 is: 209,933.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,450.32 : 385,641.50 = 152,125.88 : x
  2. Step 2: Convert to fraction form
    279,450.32/385,641.50 = 152,125.88/x
  3. Step 3: Cross multiply
    279,450.32x = 385,641.50 × 152,125.88
  4. Step 4: Simplify right side
    279,450.32x = 58,666,049,863.18
  5. Step 5: Solve for x
    x = 58,666,049,863.18/279,450.32
  6. Step 6: Final answer
    x = 209,933.74

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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.