Home / 189,246.30-283,869.45-155,420.70

Finding the Fourth Proportional to 189,246.30, 283,869.45 and 155,420.70

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Solution

The fourth proportional to 189,246.30, 283,869.45 and 155,420.70 is: 233,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,246.30 : 283,869.45 = 155,420.70 : x
  2. Step 2: Convert to fraction form
    189,246.30/283,869.45 = 155,420.70/x
  3. Step 3: Cross multiply
    189,246.30x = 283,869.45 × 155,420.70
  4. Step 4: Simplify right side
    189,246.30x = 44,119,188,627.62
  5. Step 5: Solve for x
    x = 44,119,188,627.62/189,246.30
  6. Step 6: Final answer
    x = 233,131.05

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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.