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Finding the Fourth Proportional to 658,206, 987,309 and 159,570

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Solution

The fourth proportional to 658,206, 987,309 and 159,570 is: 239,355

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,206 : 987,309 = 159,570 : x
  2. Step 2: Convert to fraction form
    658,206/987,309 = 159,570/x
  3. Step 3: Cross multiply
    658,206x = 987,309 × 159,570
  4. Step 4: Simplify right side
    658,206x = 157,544,897,130
  5. Step 5: Solve for x
    x = 157,544,897,130/658,206
  6. Step 6: Final answer
    x = 239,355

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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.