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Finding the Fourth Proportional to 292,591, 438,886.68 and 70,975

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Solution

The fourth proportional to 292,591, 438,886.68 and 70,975 is: 106,462.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,591 : 438,886.68 = 70,975 : x
  2. Step 2: Convert to fraction form
    292,591/438,886.68 = 70,975/x
  3. Step 3: Cross multiply
    292,591x = 438,886.68 × 70,975
  4. Step 4: Simplify right side
    292,591x = 31,149,982,113
  5. Step 5: Solve for x
    x = 31,149,982,113/292,591
  6. Step 6: Final answer
    x = 106,462.54

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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.