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Finding the Fourth Proportional to 170,789.80, 256,184.70 and 160,421.80

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Solution

The fourth proportional to 170,789.80, 256,184.70 and 160,421.80 is: 240,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,789.80 : 256,184.70 = 160,421.80 : x
  2. Step 2: Convert to fraction form
    170,789.80/256,184.70 = 160,421.80/x
  3. Step 3: Cross multiply
    170,789.80x = 256,184.70 × 160,421.80
  4. Step 4: Simplify right side
    170,789.80x = 41,097,610,706.46
  5. Step 5: Solve for x
    x = 41,097,610,706.46/170,789.80
  6. Step 6: Final answer
    x = 240,632.70

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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.