Home / 279,451.08-385,640.52-152,126.34

Finding the Fourth Proportional to 279,451.08, 385,640.52 and 152,126.34

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Solution

The fourth proportional to 279,451.08, 385,640.52 and 152,126.34 is: 209,933.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,451.08 : 385,640.52 = 152,126.34 : x
  2. Step 2: Convert to fraction form
    279,451.08/385,640.52 = 152,126.34/x
  3. Step 3: Cross multiply
    279,451.08x = 385,640.52 × 152,126.34
  4. Step 4: Simplify right side
    279,451.08x = 58,666,080,863.30
  5. Step 5: Solve for x
    x = 58,666,080,863.30/279,451.08
  6. Step 6: Final answer
    x = 209,933.28

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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.