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Finding the Fourth Proportional to 317,217.60, 475,423.20 and 130,017.60

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Solution

The fourth proportional to 317,217.60, 475,423.20 and 130,017.60 is: 194,861.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,217.60 : 475,423.20 = 130,017.60 : x
  2. Step 2: Convert to fraction form
    317,217.60/475,423.20 = 130,017.60/x
  3. Step 3: Cross multiply
    317,217.60x = 475,423.20 × 130,017.60
  4. Step 4: Simplify right side
    317,217.60x = 61,813,383,448.32
  5. Step 5: Solve for x
    x = 61,813,383,448.32/317,217.60
  6. Step 6: Final answer
    x = 194,861.14

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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.