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Finding the Fourth Proportional to 324,132.40, 485,615.40 and 277,476.40

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Solution

The fourth proportional to 324,132.40, 485,615.40 and 277,476.40 is: 415,715.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,132.40 : 485,615.40 = 277,476.40 : x
  2. Step 2: Convert to fraction form
    324,132.40/485,615.40 = 277,476.40/x
  3. Step 3: Cross multiply
    324,132.40x = 485,615.40 × 277,476.40
  4. Step 4: Simplify right side
    324,132.40x = 134,746,812,976.56
  5. Step 5: Solve for x
    x = 134,746,812,976.56/324,132.40
  6. Step 6: Final answer
    x = 415,715.35

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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.