Home / 291,620.13-402,440.18-162,555

Finding the Fourth Proportional to 291,620.13, 402,440.18 and 162,555

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Solution

The fourth proportional to 291,620.13, 402,440.18 and 162,555 is: 224,328.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,620.13 : 402,440.18 = 162,555 : x
  2. Step 2: Convert to fraction form
    291,620.13/402,440.18 = 162,555/x
  3. Step 3: Cross multiply
    291,620.13x = 402,440.18 × 162,555
  4. Step 4: Simplify right side
    291,620.13x = 65,418,663,459.90
  5. Step 5: Solve for x
    x = 65,418,663,459.90/291,620.13
  6. Step 6: Final answer
    x = 224,328.35

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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.