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Finding the Fourth Proportional to 312,956.66, 469,434.99 and 76,301.39

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Solution

The fourth proportional to 312,956.66, 469,434.99 and 76,301.39 is: 114,452.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,956.66 : 469,434.99 = 76,301.39 : x
  2. Step 2: Convert to fraction form
    312,956.66/469,434.99 = 76,301.39/x
  3. Step 3: Cross multiply
    312,956.66x = 469,434.99 × 76,301.39
  4. Step 4: Simplify right side
    312,956.66x = 35,818,543,711.35
  5. Step 5: Solve for x
    x = 35,818,543,711.35/312,956.66
  6. Step 6: Final answer
    x = 114,452.09

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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.