Home / 306,500.04-422,972.14-170,539.70

Finding the Fourth Proportional to 306,500.04, 422,972.14 and 170,539.70

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Solution

The fourth proportional to 306,500.04, 422,972.14 and 170,539.70 is: 235,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,500.04 : 422,972.14 = 170,539.70 : x
  2. Step 2: Convert to fraction form
    306,500.04/422,972.14 = 170,539.70/x
  3. Step 3: Cross multiply
    306,500.04x = 422,972.14 × 170,539.70
  4. Step 4: Simplify right side
    306,500.04x = 72,133,541,863.96
  5. Step 5: Solve for x
    x = 72,133,541,863.96/306,500.04
  6. Step 6: Final answer
    x = 235,345.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.