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Finding the Fourth Proportional to 317,318.10, 475,977.15 and 130,329.60

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Solution

The fourth proportional to 317,318.10, 475,977.15 and 130,329.60 is: 195,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,318.10 : 475,977.15 = 130,329.60 : x
  2. Step 2: Convert to fraction form
    317,318.10/475,977.15 = 130,329.60/x
  3. Step 3: Cross multiply
    317,318.10x = 475,977.15 × 130,329.60
  4. Step 4: Simplify right side
    317,318.10x = 62,033,911,568.64
  5. Step 5: Solve for x
    x = 62,033,911,568.64/317,318.10
  6. Step 6: Final answer
    x = 195,494.40

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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.