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Finding the Fourth Proportional to 170,820.30, 256,230.45 and 118,332.30

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Solution

The fourth proportional to 170,820.30, 256,230.45 and 118,332.30 is: 177,498.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,820.30 : 256,230.45 = 118,332.30 : x
  2. Step 2: Convert to fraction form
    170,820.30/256,230.45 = 118,332.30/x
  3. Step 3: Cross multiply
    170,820.30x = 256,230.45 × 118,332.30
  4. Step 4: Simplify right side
    170,820.30x = 30,320,338,478.54
  5. Step 5: Solve for x
    x = 30,320,338,478.54/170,820.30
  6. Step 6: Final answer
    x = 177,498.45

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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.