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Finding the Fourth Proportional to 170,012.20, 254,799.60 and 103,381.60

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Solution

The fourth proportional to 170,012.20, 254,799.60 and 103,381.60 is: 154,939.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,012.20 : 254,799.60 = 103,381.60 : x
  2. Step 2: Convert to fraction form
    170,012.20/254,799.60 = 103,381.60/x
  3. Step 3: Cross multiply
    170,012.20x = 254,799.60 × 103,381.60
  4. Step 4: Simplify right side
    170,012.20x = 26,341,590,327.36
  5. Step 5: Solve for x
    x = 26,341,590,327.36/170,012.20
  6. Step 6: Final answer
    x = 154,939.41

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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.