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Finding the Fourth Proportional to 312,037.80, 468,056.70 and 125,183.40

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Solution

The fourth proportional to 312,037.80, 468,056.70 and 125,183.40 is: 187,775.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,037.80 : 468,056.70 = 125,183.40 : x
  2. Step 2: Convert to fraction form
    312,037.80/468,056.70 = 125,183.40/x
  3. Step 3: Cross multiply
    312,037.80x = 468,056.70 × 125,183.40
  4. Step 4: Simplify right side
    312,037.80x = 58,592,929,098.78
  5. Step 5: Solve for x
    x = 58,592,929,098.78/312,037.80
  6. Step 6: Final answer
    x = 187,775.10

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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.