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Finding the Fourth Proportional to 439,315.56, 658,220.88 and 239,775.84

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Solution

The fourth proportional to 439,315.56, 658,220.88 and 239,775.84 is: 359,253.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,315.56 : 658,220.88 = 239,775.84 : x
  2. Step 2: Convert to fraction form
    439,315.56/658,220.88 = 239,775.84/x
  3. Step 3: Cross multiply
    439,315.56x = 658,220.88 × 239,775.84
  4. Step 4: Simplify right side
    439,315.56x = 157,825,464,407.54
  5. Step 5: Solve for x
    x = 157,825,464,407.54/439,315.56
  6. Step 6: Final answer
    x = 359,253.07

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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.