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Finding the Fourth Proportional to 490,415.08, 735,741.18 and 170,520.76

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Solution

The fourth proportional to 490,415.08, 735,741.18 and 170,520.76 is: 255,822.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,415.08 : 735,741.18 = 170,520.76 : x
  2. Step 2: Convert to fraction form
    490,415.08/735,741.18 = 170,520.76/x
  3. Step 3: Cross multiply
    490,415.08x = 735,741.18 × 170,520.76
  4. Step 4: Simplify right side
    490,415.08x = 125,459,145,176.90
  5. Step 5: Solve for x
    x = 125,459,145,176.90/490,415.08
  6. Step 6: Final answer
    x = 255,822.36

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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.