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Finding the Fourth Proportional to 285,145.92, 427,524.48 and 144,633.60

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Solution

The fourth proportional to 285,145.92, 427,524.48 and 144,633.60 is: 216,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,145.92 : 427,524.48 = 144,633.60 : x
  2. Step 2: Convert to fraction form
    285,145.92/427,524.48 = 144,633.60/x
  3. Step 3: Cross multiply
    285,145.92x = 427,524.48 × 144,633.60
  4. Step 4: Simplify right side
    285,145.92x = 61,834,404,630.53
  5. Step 5: Solve for x
    x = 61,834,404,630.53/285,145.92
  6. Step 6: Final answer
    x = 216,851.80

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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.