Home / 312,127.23-430,734.20-168,889.80

Finding the Fourth Proportional to 312,127.23, 430,734.20 and 168,889.80

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Solution

The fourth proportional to 312,127.23, 430,734.20 and 168,889.80 is: 233,067.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,127.23 : 430,734.20 = 168,889.80 : x
  2. Step 2: Convert to fraction form
    312,127.23/430,734.20 = 168,889.80/x
  3. Step 3: Cross multiply
    312,127.23x = 430,734.20 × 168,889.80
  4. Step 4: Simplify right side
    312,127.23x = 72,746,612,046.71
  5. Step 5: Solve for x
    x = 72,746,612,046.71/312,127.23
  6. Step 6: Final answer
    x = 233,067.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.