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Finding the Fourth Proportional to 300,347.32, 450,454.42 and 89,957.56

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Solution

The fourth proportional to 300,347.32, 450,454.42 and 89,957.56 is: 134,916.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,347.32 : 450,454.42 = 89,957.56 : x
  2. Step 2: Convert to fraction form
    300,347.32/450,454.42 = 89,957.56/x
  3. Step 3: Cross multiply
    300,347.32x = 450,454.42 × 89,957.56
  4. Step 4: Simplify right side
    300,347.32x = 40,521,780,514.42
  5. Step 5: Solve for x
    x = 40,521,780,514.42/300,347.32
  6. Step 6: Final answer
    x = 134,916.40

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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.