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Finding the Fourth Proportional to 259,630.80, 358,293.24 and 144,920.40

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Solution

The fourth proportional to 259,630.80, 358,293.24 and 144,920.40 is: 199,991.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,630.80 : 358,293.24 = 144,920.40 : x
  2. Step 2: Convert to fraction form
    259,630.80/358,293.24 = 144,920.40/x
  3. Step 3: Cross multiply
    259,630.80x = 358,293.24 × 144,920.40
  4. Step 4: Simplify right side
    259,630.80x = 51,923,999,658.10
  5. Step 5: Solve for x
    x = 51,923,999,658.10/259,630.80
  6. Step 6: Final answer
    x = 199,991.68

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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.