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Finding the Fourth Proportional to 290,480.88, 435,534.84 and 112,798.56

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Solution

The fourth proportional to 290,480.88, 435,534.84 and 112,798.56 is: 169,125.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,480.88 : 435,534.84 = 112,798.56 : x
  2. Step 2: Convert to fraction form
    290,480.88/435,534.84 = 112,798.56/x
  3. Step 3: Cross multiply
    290,480.88x = 435,534.84 × 112,798.56
  4. Step 4: Simplify right side
    290,480.88x = 49,127,702,781.83
  5. Step 5: Solve for x
    x = 49,127,702,781.83/290,480.88
  6. Step 6: Final answer
    x = 169,125.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.