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Finding the Fourth Proportional to 323,612.30, 486,001.65 and 313,114.70

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Solution

The fourth proportional to 323,612.30, 486,001.65 and 313,114.70 is: 470,236.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,612.30 : 486,001.65 = 313,114.70 : x
  2. Step 2: Convert to fraction form
    323,612.30/486,001.65 = 313,114.70/x
  3. Step 3: Cross multiply
    323,612.30x = 486,001.65 × 313,114.70
  4. Step 4: Simplify right side
    323,612.30x = 152,174,260,839.26
  5. Step 5: Solve for x
    x = 152,174,260,839.26/323,612.30
  6. Step 6: Final answer
    x = 470,236.33

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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.