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Finding the Fourth Proportional to 658,638, 987,959.43 and 160,002

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Solution

The fourth proportional to 658,638, 987,959.43 and 160,002 is: 240,003.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,638 : 987,959.43 = 160,002 : x
  2. Step 2: Convert to fraction form
    658,638/987,959.43 = 160,002/x
  3. Step 3: Cross multiply
    658,638x = 987,959.43 × 160,002
  4. Step 4: Simplify right side
    658,638x = 158,075,484,718.86
  5. Step 5: Solve for x
    x = 158,075,484,718.86/658,638
  6. Step 6: Final answer
    x = 240,003.59

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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.