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Finding the Fourth Proportional to 292,531.89, 438,797.88 and 70,915.89

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Solution

The fourth proportional to 292,531.89, 438,797.88 and 70,915.89 is: 106,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,531.89 : 438,797.88 = 70,915.89 : x
  2. Step 2: Convert to fraction form
    292,531.89/438,797.88 = 70,915.89/x
  3. Step 3: Cross multiply
    292,531.89x = 438,797.88 × 70,915.89
  4. Step 4: Simplify right side
    292,531.89x = 31,117,742,190.31
  5. Step 5: Solve for x
    x = 31,117,742,190.31/292,531.89
  6. Step 6: Final answer
    x = 106,373.85

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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.