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Finding the Fourth Proportional to 571,988.63, 857,988.04 and 145,525

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Solution

The fourth proportional to 571,988.63, 857,988.04 and 145,525 is: 218,288.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,988.63 : 857,988.04 = 145,525 : x
  2. Step 2: Convert to fraction form
    571,988.63/857,988.04 = 145,525/x
  3. Step 3: Cross multiply
    571,988.63x = 857,988.04 × 145,525
  4. Step 4: Simplify right side
    571,988.63x = 124,858,708,793.38
  5. Step 5: Solve for x
    x = 124,858,708,793.38/571,988.63
  6. Step 6: Final answer
    x = 218,288.79

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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.