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Finding the Fourth Proportional to 240,244.90, 360,584.72 and 128,019.94

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Solution

The fourth proportional to 240,244.90, 360,584.72 and 128,019.94 is: 192,145.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,244.90 : 360,584.72 = 128,019.94 : x
  2. Step 2: Convert to fraction form
    240,244.90/360,584.72 = 128,019.94/x
  3. Step 3: Cross multiply
    240,244.90x = 360,584.72 × 128,019.94
  4. Step 4: Simplify right side
    240,244.90x = 46,162,031,776.29
  5. Step 5: Solve for x
    x = 46,162,031,776.29/240,244.90
  6. Step 6: Final answer
    x = 192,145.73

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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.