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Finding the Fourth Proportional to 260,805.53, 390,700.68 and 192,292.29

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Solution

The fourth proportional to 260,805.53, 390,700.68 and 192,292.29 is: 288,064.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,805.53 : 390,700.68 = 192,292.29 : x
  2. Step 2: Convert to fraction form
    260,805.53/390,700.68 = 192,292.29/x
  3. Step 3: Cross multiply
    260,805.53x = 390,700.68 × 192,292.29
  4. Step 4: Simplify right side
    260,805.53x = 75,128,728,461.76
  5. Step 5: Solve for x
    x = 75,128,728,461.76/260,805.53
  6. Step 6: Final answer
    x = 288,064.17

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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.