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Finding the Fourth Proportional to 398,262.66, 549,600.18 and 216,974.22

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Solution

The fourth proportional to 398,262.66, 549,600.18 and 216,974.22 is: 299,423.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,262.66 : 549,600.18 = 216,974.22 : x
  2. Step 2: Convert to fraction form
    398,262.66/549,600.18 = 216,974.22/x
  3. Step 3: Cross multiply
    398,262.66x = 549,600.18 × 216,974.22
  4. Step 4: Simplify right side
    398,262.66x = 119,249,070,367.36
  5. Step 5: Solve for x
    x = 119,249,070,367.36/398,262.66
  6. Step 6: Final answer
    x = 299,423.18

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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.