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Finding the Fourth Proportional to 477,171.77, 715,738.95 and 161,628.66

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Solution

The fourth proportional to 477,171.77, 715,738.95 and 161,628.66 is: 242,436.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,171.77 : 715,738.95 = 161,628.66 : x
  2. Step 2: Convert to fraction form
    477,171.77/715,738.95 = 161,628.66/x
  3. Step 3: Cross multiply
    477,171.77x = 715,738.95 × 161,628.66
  4. Step 4: Simplify right side
    477,171.77x = 115,683,927,398.31
  5. Step 5: Solve for x
    x = 115,683,927,398.31/477,171.77
  6. Step 6: Final answer
    x = 242,436.66

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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.