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Finding the Fourth Proportional to 328,095.80, 492,726.90 and 239,449.40

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Solution

The fourth proportional to 328,095.80, 492,726.90 and 239,449.40 is: 359,599.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,095.80 : 492,726.90 = 239,449.40 : x
  2. Step 2: Convert to fraction form
    328,095.80/492,726.90 = 239,449.40/x
  3. Step 3: Cross multiply
    328,095.80x = 492,726.90 × 239,449.40
  4. Step 4: Simplify right side
    328,095.80x = 117,983,160,568.86
  5. Step 5: Solve for x
    x = 117,983,160,568.86/328,095.80
  6. Step 6: Final answer
    x = 359,599.73

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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.