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Finding the Fourth Proportional to 398,044.01, 549,295.29 and 225,960.47

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Solution

The fourth proportional to 398,044.01, 549,295.29 and 225,960.47 is: 311,822.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,044.01 : 549,295.29 = 225,960.47 : x
  2. Step 2: Convert to fraction form
    398,044.01/549,295.29 = 225,960.47/x
  3. Step 3: Cross multiply
    398,044.01x = 549,295.29 × 225,960.47
  4. Step 4: Simplify right side
    398,044.01x = 124,119,019,150.71
  5. Step 5: Solve for x
    x = 124,119,019,150.71/398,044.01
  6. Step 6: Final answer
    x = 311,822.36

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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.