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Finding the Fourth Proportional to 259,572.25, 358,209.71 and 140,340.25

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Solution

The fourth proportional to 259,572.25, 358,209.71 and 140,340.25 is: 193,669.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,572.25 : 358,209.71 = 140,340.25 : x
  2. Step 2: Convert to fraction form
    259,572.25/358,209.71 = 140,340.25/x
  3. Step 3: Cross multiply
    259,572.25x = 358,209.71 × 140,340.25
  4. Step 4: Simplify right side
    259,572.25x = 50,271,240,253.83
  5. Step 5: Solve for x
    x = 50,271,240,253.83/259,572.25
  6. Step 6: Final answer
    x = 193,669.55

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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.