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Finding the Fourth Proportional to 288,649.74, 398,077.82 and 240,411.82

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Solution

The fourth proportional to 288,649.74, 398,077.82 and 240,411.82 is: 331,552.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,649.74 : 398,077.82 = 240,411.82 : x
  2. Step 2: Convert to fraction form
    288,649.74/398,077.82 = 240,411.82/x
  3. Step 3: Cross multiply
    288,649.74x = 398,077.82 × 240,411.82
  4. Step 4: Simplify right side
    288,649.74x = 95,702,613,207.83
  5. Step 5: Solve for x
    x = 95,702,613,207.83/288,649.74
  6. Step 6: Final answer
    x = 331,552.74

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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.