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Finding the Fourth Proportional to 477,141.70, 715,712.55 and 228,309.70

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Solution

The fourth proportional to 477,141.70, 715,712.55 and 228,309.70 is: 342,464.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,141.70 : 715,712.55 = 228,309.70 : x
  2. Step 2: Convert to fraction form
    477,141.70/715,712.55 = 228,309.70/x
  3. Step 3: Cross multiply
    477,141.70x = 715,712.55 × 228,309.70
  4. Step 4: Simplify right side
    477,141.70x = 163,404,117,576.74
  5. Step 5: Solve for x
    x = 163,404,117,576.74/477,141.70
  6. Step 6: Final answer
    x = 342,464.55

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Similar ratio
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1.5x scale

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.