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Finding the Fourth Proportional to 302,452.70, 453,657.18 and 144,638.78

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Solution

The fourth proportional to 302,452.70, 453,657.18 and 144,638.78 is: 216,947.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,452.70 : 453,657.18 = 144,638.78 : x
  2. Step 2: Convert to fraction form
    302,452.70/453,657.18 = 144,638.78/x
  3. Step 3: Cross multiply
    302,452.70x = 453,657.18 × 144,638.78
  4. Step 4: Simplify right side
    302,452.70x = 65,616,421,053.44
  5. Step 5: Solve for x
    x = 65,616,421,053.44/302,452.70
  6. Step 6: Final answer
    x = 216,947.71

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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.