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Finding the Fourth Proportional to 477,612.67, 716,393.09 and 145,162.75

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Solution

The fourth proportional to 477,612.67, 716,393.09 and 145,162.75 is: 217,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,612.67 : 716,393.09 = 145,162.75 : x
  2. Step 2: Convert to fraction form
    477,612.67/716,393.09 = 145,162.75/x
  3. Step 3: Cross multiply
    477,612.67x = 716,393.09 × 145,162.75
  4. Step 4: Simplify right side
    477,612.67x = 103,993,590,299.58
  5. Step 5: Solve for x
    x = 103,993,590,299.58/477,612.67
  6. Step 6: Final answer
    x = 217,736.25

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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.