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Finding the Fourth Proportional to 302,947.80, 454,372.41 and 143,023.42

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Solution

The fourth proportional to 302,947.80, 454,372.41 and 143,023.42 is: 214,511.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,947.80 : 454,372.41 = 143,023.42 : x
  2. Step 2: Convert to fraction form
    302,947.80/454,372.41 = 143,023.42/x
  3. Step 3: Cross multiply
    302,947.80x = 454,372.41 × 143,023.42
  4. Step 4: Simplify right side
    302,947.80x = 64,985,896,733.89
  5. Step 5: Solve for x
    x = 64,985,896,733.89/302,947.80
  6. Step 6: Final answer
    x = 214,511.86

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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.