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Finding the Fourth Proportional to 372,454.30, 513,998.59 and 211,316.14

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Solution

The fourth proportional to 372,454.30, 513,998.59 and 211,316.14 is: 291,622.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,454.30 : 513,998.59 = 211,316.14 : x
  2. Step 2: Convert to fraction form
    372,454.30/513,998.59 = 211,316.14/x
  3. Step 3: Cross multiply
    372,454.30x = 513,998.59 × 211,316.14
  4. Step 4: Simplify right side
    372,454.30x = 108,616,195,434.25
  5. Step 5: Solve for x
    x = 108,616,195,434.25/372,454.30
  6. Step 6: Final answer
    x = 291,622.88

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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.