Home / 170,821.20-256,231.80-162,656.40

Finding the Fourth Proportional to 170,821.20, 256,231.80 and 162,656.40

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Solution

The fourth proportional to 170,821.20, 256,231.80 and 162,656.40 is: 243,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,821.20 : 256,231.80 = 162,656.40 : x
  2. Step 2: Convert to fraction form
    170,821.20/256,231.80 = 162,656.40/x
  3. Step 3: Cross multiply
    170,821.20x = 256,231.80 × 162,656.40
  4. Step 4: Simplify right side
    170,821.20x = 41,677,742,153.52
  5. Step 5: Solve for x
    x = 41,677,742,153.52/170,821.20
  6. Step 6: Final answer
    x = 243,984.60

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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.