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Finding the Fourth Proportional to 285,098.78, 427,352.90 and 234,648.80

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Solution

The fourth proportional to 285,098.78, 427,352.90 and 234,648.80 is: 351,730.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,098.78 : 427,352.90 = 234,648.80 : x
  2. Step 2: Convert to fraction form
    285,098.78/427,352.90 = 234,648.80/x
  3. Step 3: Cross multiply
    285,098.78x = 427,352.90 × 234,648.80
  4. Step 4: Simplify right side
    285,098.78x = 100,277,843,024.76
  5. Step 5: Solve for x
    x = 100,277,843,024.76/285,098.78
  6. Step 6: Final answer
    x = 351,730.17

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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.