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Finding the Fourth Proportional to 170,893.40, 256,340.10 and 100,851.80

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Solution

The fourth proportional to 170,893.40, 256,340.10 and 100,851.80 is: 151,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,893.40 : 256,340.10 = 100,851.80 : x
  2. Step 2: Convert to fraction form
    170,893.40/256,340.10 = 100,851.80/x
  3. Step 3: Cross multiply
    170,893.40x = 256,340.10 × 100,851.80
  4. Step 4: Simplify right side
    170,893.40x = 25,852,360,497.18
  5. Step 5: Solve for x
    x = 25,852,360,497.18/170,893.40
  6. Step 6: Final answer
    x = 151,277.70

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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.