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Finding the Fourth Proportional to 285,154.53, 393,505.43 and 162,644.13

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Solution

The fourth proportional to 285,154.53, 393,505.43 and 162,644.13 is: 224,444.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,154.53 : 393,505.43 = 162,644.13 : x
  2. Step 2: Convert to fraction form
    285,154.53/393,505.43 = 162,644.13/x
  3. Step 3: Cross multiply
    285,154.53x = 393,505.43 × 162,644.13
  4. Step 4: Simplify right side
    285,154.53x = 64,001,347,499.41
  5. Step 5: Solve for x
    x = 64,001,347,499.41/285,154.53
  6. Step 6: Final answer
    x = 224,444.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.