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Finding the Fourth Proportional to 262,154.32, 392,833.08 and 192,080.08

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Solution

The fourth proportional to 262,154.32, 392,833.08 and 192,080.08 is: 287,828.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,154.32 : 392,833.08 = 192,080.08 : x
  2. Step 2: Convert to fraction form
    262,154.32/392,833.08 = 192,080.08/x
  3. Step 3: Cross multiply
    262,154.32x = 392,833.08 × 192,080.08
  4. Step 4: Simplify right side
    262,154.32x = 75,455,409,433.05
  5. Step 5: Solve for x
    x = 75,455,409,433.05/262,154.32
  6. Step 6: Final answer
    x = 287,828.21

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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.