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Finding the Fourth Proportional to 170,745.20, 256,117.80 and 117,601.10

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Solution

The fourth proportional to 170,745.20, 256,117.80 and 117,601.10 is: 176,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,745.20 : 256,117.80 = 117,601.10 : x
  2. Step 2: Convert to fraction form
    170,745.20/256,117.80 = 117,601.10/x
  3. Step 3: Cross multiply
    170,745.20x = 256,117.80 × 117,601.10
  4. Step 4: Simplify right side
    170,745.20x = 30,119,735,009.58
  5. Step 5: Solve for x
    x = 30,119,735,009.58/170,745.20
  6. Step 6: Final answer
    x = 176,401.65

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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.