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Finding the Fourth Proportional to 477,172.77, 715,740.45 and 161,629.66

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Solution

The fourth proportional to 477,172.77, 715,740.45 and 161,629.66 is: 242,438.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,172.77 : 715,740.45 = 161,629.66 : x
  2. Step 2: Convert to fraction form
    477,172.77/715,740.45 = 161,629.66/x
  3. Step 3: Cross multiply
    477,172.77x = 715,740.45 × 161,629.66
  4. Step 4: Simplify right side
    477,172.77x = 115,684,885,581.75
  5. Step 5: Solve for x
    x = 115,684,885,581.75/477,172.77
  6. Step 6: Final answer
    x = 242,438.15

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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.