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Finding the Fourth Proportional to 323,741.70, 485,612.55 and 99,101.70

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Solution

The fourth proportional to 323,741.70, 485,612.55 and 99,101.70 is: 148,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,741.70 : 485,612.55 = 99,101.70 : x
  2. Step 2: Convert to fraction form
    323,741.70/485,612.55 = 99,101.70/x
  3. Step 3: Cross multiply
    323,741.70x = 485,612.55 × 99,101.70
  4. Step 4: Simplify right side
    323,741.70x = 48,125,029,246.34
  5. Step 5: Solve for x
    x = 48,125,029,246.34/323,741.70
  6. Step 6: Final answer
    x = 148,652.55

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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.