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Finding the Fourth Proportional to 313,230.42, 469,845.63 and 76,572.72

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Solution

The fourth proportional to 313,230.42, 469,845.63 and 76,572.72 is: 114,859.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,230.42 : 469,845.63 = 76,572.72 : x
  2. Step 2: Convert to fraction form
    313,230.42/469,845.63 = 76,572.72/x
  3. Step 3: Cross multiply
    313,230.42x = 469,845.63 × 76,572.72
  4. Step 4: Simplify right side
    313,230.42x = 35,977,357,869.21
  5. Step 5: Solve for x
    x = 35,977,357,869.21/313,230.42
  6. Step 6: Final answer
    x = 114,859.08

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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.