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Finding the Fourth Proportional to 171,079.53, 256,441.37 and 64,390.38

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Solution

The fourth proportional to 171,079.53, 256,441.37 and 64,390.38 is: 96,518.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,079.53 : 256,441.37 = 64,390.38 : x
  2. Step 2: Convert to fraction form
    171,079.53/256,441.37 = 64,390.38/x
  3. Step 3: Cross multiply
    171,079.53x = 256,441.37 × 64,390.38
  4. Step 4: Simplify right side
    171,079.53x = 16,512,357,262.02
  5. Step 5: Solve for x
    x = 16,512,357,262.02/171,079.53
  6. Step 6: Final answer
    x = 96,518.60

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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.