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Finding the Fourth Proportional to 370,019.60, 555,288.60 and 159,808.40

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Solution

The fourth proportional to 370,019.60, 555,288.60 and 159,808.40 is: 239,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,019.60 : 555,288.60 = 159,808.40 : x
  2. Step 2: Convert to fraction form
    370,019.60/555,288.60 = 159,808.40/x
  3. Step 3: Cross multiply
    370,019.60x = 555,288.60 × 159,808.40
  4. Step 4: Simplify right side
    370,019.60x = 88,739,782,704.24
  5. Step 5: Solve for x
    x = 88,739,782,704.24/370,019.60
  6. Step 6: Final answer
    x = 239,824.55

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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.