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Finding the Fourth Proportional to 398,311.52, 549,418.70 and 237,046.18

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Solution

The fourth proportional to 398,311.52, 549,418.70 and 237,046.18 is: 326,974.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,311.52 : 549,418.70 = 237,046.18 : x
  2. Step 2: Convert to fraction form
    398,311.52/549,418.70 = 237,046.18/x
  3. Step 3: Cross multiply
    398,311.52x = 549,418.70 × 237,046.18
  4. Step 4: Simplify right side
    398,311.52x = 130,237,604,055.57
  5. Step 5: Solve for x
    x = 130,237,604,055.57/398,311.52
  6. Step 6: Final answer
    x = 326,974.23

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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.