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Finding the Fourth Proportional to 410,820.40, 616,230.60 and 130,337.65

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Solution

The fourth proportional to 410,820.40, 616,230.60 and 130,337.65 is: 195,506.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,820.40 : 616,230.60 = 130,337.65 : x
  2. Step 2: Convert to fraction form
    410,820.40/616,230.60 = 130,337.65/x
  3. Step 3: Cross multiply
    410,820.40x = 616,230.60 × 130,337.65
  4. Step 4: Simplify right side
    410,820.40x = 80,318,048,262.09
  5. Step 5: Solve for x
    x = 80,318,048,262.09/410,820.40
  6. Step 6: Final answer
    x = 195,506.48

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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.