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Finding the Fourth Proportional to 342,350.40, 512,359.20 and 342,350.40

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Solution

The fourth proportional to 342,350.40, 512,359.20 and 342,350.40 is: 512,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,350.40 : 512,359.20 = 342,350.40 : x
  2. Step 2: Convert to fraction form
    342,350.40/512,359.20 = 342,350.40/x
  3. Step 3: Cross multiply
    342,350.40x = 512,359.20 × 342,350.40
  4. Step 4: Simplify right side
    342,350.40x = 175,406,377,063.68
  5. Step 5: Solve for x
    x = 175,406,377,063.68/342,350.40
  6. Step 6: Final answer
    x = 512,359.20

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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.