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Finding the Fourth Proportional to 288,625.60, 398,045.40 and 181,205.68

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Solution

The fourth proportional to 288,625.60, 398,045.40 and 181,205.68 is: 249,901.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,625.60 : 398,045.40 = 181,205.68 : x
  2. Step 2: Convert to fraction form
    288,625.60/398,045.40 = 181,205.68/x
  3. Step 3: Cross multiply
    288,625.60x = 398,045.40 × 181,205.68
  4. Step 4: Simplify right side
    288,625.60x = 72,128,087,377.87
  5. Step 5: Solve for x
    x = 72,128,087,377.87/288,625.60
  6. Step 6: Final answer
    x = 249,901.91

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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.