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Finding the Fourth Proportional to 303,391.32, 455,290.12 and 125,898.50

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Solution

The fourth proportional to 303,391.32, 455,290.12 and 125,898.50 is: 188,932.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,391.32 : 455,290.12 = 125,898.50 : x
  2. Step 2: Convert to fraction form
    303,391.32/455,290.12 = 125,898.50/x
  3. Step 3: Cross multiply
    303,391.32x = 455,290.12 × 125,898.50
  4. Step 4: Simplify right side
    303,391.32x = 57,320,343,760.24
  5. Step 5: Solve for x
    x = 57,320,343,760.24/303,391.32
  6. Step 6: Final answer
    x = 188,932.05

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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.