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Finding the Fourth Proportional to 192,347.70, 288,521.55 and 103,774.20

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Solution

The fourth proportional to 192,347.70, 288,521.55 and 103,774.20 is: 155,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,347.70 : 288,521.55 = 103,774.20 : x
  2. Step 2: Convert to fraction form
    192,347.70/288,521.55 = 103,774.20/x
  3. Step 3: Cross multiply
    192,347.70x = 288,521.55 × 103,774.20
  4. Step 4: Simplify right side
    192,347.70x = 29,941,093,034.01
  5. Step 5: Solve for x
    x = 29,941,093,034.01/192,347.70
  6. Step 6: Final answer
    x = 155,661.30

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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.