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Finding the Fourth Proportional to 478,037.56, 717,056.40 and 158,103.55

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Solution

The fourth proportional to 478,037.56, 717,056.40 and 158,103.55 is: 237,155.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,037.56 : 717,056.40 = 158,103.55 : x
  2. Step 2: Convert to fraction form
    478,037.56/717,056.40 = 158,103.55/x
  3. Step 3: Cross multiply
    478,037.56x = 717,056.40 × 158,103.55
  4. Step 4: Simplify right side
    478,037.56x = 113,369,162,390.22
  5. Step 5: Solve for x
    x = 113,369,162,390.22/478,037.56
  6. Step 6: Final answer
    x = 237,155.34

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Similar ratio
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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.