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Finding the Fourth Proportional to 324,063.80, 486,095.70 and 272,742.20

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Solution

The fourth proportional to 324,063.80, 486,095.70 and 272,742.20 is: 409,113.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,063.80 : 486,095.70 = 272,742.20 : x
  2. Step 2: Convert to fraction form
    324,063.80/486,095.70 = 272,742.20/x
  3. Step 3: Cross multiply
    324,063.80x = 486,095.70 × 272,742.20
  4. Step 4: Simplify right side
    324,063.80x = 132,578,810,628.54
  5. Step 5: Solve for x
    x = 132,578,810,628.54/324,063.80
  6. Step 6: Final answer
    x = 409,113.30

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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.