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Finding the Fourth Proportional to 442,294.99, 663,442.35 and 142,819.63

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Solution

The fourth proportional to 442,294.99, 663,442.35 and 142,819.63 is: 214,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,294.99 : 663,442.35 = 142,819.63 : x
  2. Step 2: Convert to fraction form
    442,294.99/663,442.35 = 142,819.63/x
  3. Step 3: Cross multiply
    442,294.99x = 663,442.35 × 142,819.63
  4. Step 4: Simplify right side
    442,294.99x = 94,752,590,953.33
  5. Step 5: Solve for x
    x = 94,752,590,953.33/442,294.99
  6. Step 6: Final answer
    x = 214,229.40

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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.