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Finding the Fourth Proportional to 323,585.78, 485,378.52 and 98,946.18

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Solution

The fourth proportional to 323,585.78, 485,378.52 and 98,946.18 is: 148,419.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,585.78 : 485,378.52 = 98,946.18 : x
  2. Step 2: Convert to fraction form
    323,585.78/485,378.52 = 98,946.18/x
  3. Step 3: Cross multiply
    323,585.78x = 485,378.52 × 98,946.18
  4. Step 4: Simplify right side
    323,585.78x = 48,026,350,408.05
  5. Step 5: Solve for x
    x = 48,026,350,408.05/323,585.78
  6. Step 6: Final answer
    x = 148,419.23

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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.