Home / 303,432.20-455,148.30-103,722.65

Finding the Fourth Proportional to 303,432.20, 455,148.30 and 103,722.65

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Solution

The fourth proportional to 303,432.20, 455,148.30 and 103,722.65 is: 155,583.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,432.20 : 455,148.30 = 103,722.65 : x
  2. Step 2: Convert to fraction form
    303,432.20/455,148.30 = 103,722.65/x
  3. Step 3: Cross multiply
    303,432.20x = 455,148.30 × 103,722.65
  4. Step 4: Simplify right side
    303,432.20x = 47,209,187,819.00
  5. Step 5: Solve for x
    x = 47,209,187,819.00/303,432.20
  6. Step 6: Final answer
    x = 155,583.98

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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.