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Finding the Fourth Proportional to 260,669.65, 359,538.60 and 239,228.59

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Solution

The fourth proportional to 260,669.65, 359,538.60 and 239,228.59 is: 329,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,669.65 : 359,538.60 = 239,228.59 : x
  2. Step 2: Convert to fraction form
    260,669.65/359,538.60 = 239,228.59/x
  3. Step 3: Cross multiply
    260,669.65x = 359,538.60 × 239,228.59
  4. Step 4: Simplify right side
    260,669.65x = 86,011,912,328.57
  5. Step 5: Solve for x
    x = 86,011,912,328.57/260,669.65
  6. Step 6: Final answer
    x = 329,965.20

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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.