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Finding the Fourth Proportional to 540,903.70, 811,432.35 and 166,887.70

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Solution

The fourth proportional to 540,903.70, 811,432.35 and 166,887.70 is: 250,355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,903.70 : 811,432.35 = 166,887.70 : x
  2. Step 2: Convert to fraction form
    540,903.70/811,432.35 = 166,887.70/x
  3. Step 3: Cross multiply
    540,903.70x = 811,432.35 × 166,887.70
  4. Step 4: Simplify right side
    540,903.70x = 135,418,078,597.10
  5. Step 5: Solve for x
    x = 135,418,078,597.10/540,903.70
  6. Step 6: Final answer
    x = 250,355.25

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Similar ratio
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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.