Home / 279,341.12-385,490.76-152,013.92

Finding the Fourth Proportional to 279,341.12, 385,490.76 and 152,013.92

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Solution

The fourth proportional to 279,341.12, 385,490.76 and 152,013.92 is: 209,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,341.12 : 385,490.76 = 152,013.92 : x
  2. Step 2: Convert to fraction form
    279,341.12/385,490.76 = 152,013.92/x
  3. Step 3: Cross multiply
    279,341.12x = 385,490.76 × 152,013.92
  4. Step 4: Simplify right side
    279,341.12x = 58,599,961,551.38
  5. Step 5: Solve for x
    x = 58,599,961,551.38/279,341.12
  6. Step 6: Final answer
    x = 209,779.22

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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.