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Finding the Fourth Proportional to 302,425.70, 453,638.55 and 207,947.30

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Solution

The fourth proportional to 302,425.70, 453,638.55 and 207,947.30 is: 311,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,425.70 : 453,638.55 = 207,947.30 : x
  2. Step 2: Convert to fraction form
    302,425.70/453,638.55 = 207,947.30/x
  3. Step 3: Cross multiply
    302,425.70x = 453,638.55 × 207,947.30
  4. Step 4: Simplify right side
    302,425.70x = 94,332,911,648.42
  5. Step 5: Solve for x
    x = 94,332,911,648.42/302,425.70
  6. Step 6: Final answer
    x = 311,920.95

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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.