Home / 516,742.60-775,063.78-156,916.57

Finding the Fourth Proportional to 516,742.60, 775,063.78 and 156,916.57

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Solution

The fourth proportional to 516,742.60, 775,063.78 and 156,916.57 is: 235,359.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,742.60 : 775,063.78 = 156,916.57 : x
  2. Step 2: Convert to fraction form
    516,742.60/775,063.78 = 156,916.57/x
  3. Step 3: Cross multiply
    516,742.60x = 775,063.78 × 156,916.57
  4. Step 4: Simplify right side
    516,742.60x = 121,620,349,888.84
  5. Step 5: Solve for x
    x = 121,620,349,888.84/516,742.60
  6. Step 6: Final answer
    x = 235,359.64

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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.