Home / 288,347.24-432,114.78-136,382.20

Finding the Fourth Proportional to 288,347.24, 432,114.78 and 136,382.20

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Solution

The fourth proportional to 288,347.24, 432,114.78 and 136,382.20 is: 204,381.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,347.24 : 432,114.78 = 136,382.20 : x
  2. Step 2: Convert to fraction form
    288,347.24/432,114.78 = 136,382.20/x
  3. Step 3: Cross multiply
    288,347.24x = 432,114.78 × 136,382.20
  4. Step 4: Simplify right side
    288,347.24x = 58,932,763,780.06
  5. Step 5: Solve for x
    x = 58,932,763,780.06/288,347.24
  6. Step 6: Final answer
    x = 204,381.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.