Home / 410,215.23-615,395.10-140,279.91

Finding the Fourth Proportional to 410,215.23, 615,395.10 and 140,279.91

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Solution

The fourth proportional to 410,215.23, 615,395.10 and 140,279.91 is: 210,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,215.23 : 615,395.10 = 140,279.91 : x
  2. Step 2: Convert to fraction form
    410,215.23/615,395.10 = 140,279.91/x
  3. Step 3: Cross multiply
    410,215.23x = 615,395.10 × 140,279.91
  4. Step 4: Simplify right side
    410,215.23x = 86,327,569,242.44
  5. Step 5: Solve for x
    x = 86,327,569,242.44/410,215.23
  6. Step 6: Final answer
    x = 210,444.57

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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.