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Finding the Fourth Proportional to 160,272, 240,408 and 43,536

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Solution

The fourth proportional to 160,272, 240,408 and 43,536 is: 65,304

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,272 : 240,408 = 43,536 : x
  2. Step 2: Convert to fraction form
    160,272/240,408 = 43,536/x
  3. Step 3: Cross multiply
    160,272x = 240,408 × 43,536
  4. Step 4: Simplify right side
    160,272x = 10,466,402,688
  5. Step 5: Solve for x
    x = 10,466,402,688/160,272
  6. Step 6: Final answer
    x = 65,304

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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.