Home / 216,170.40-298,320.12-135,601.32

Finding the Fourth Proportional to 216,170.40, 298,320.12 and 135,601.32

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Solution

The fourth proportional to 216,170.40, 298,320.12 and 135,601.32 is: 187,132.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,170.40 : 298,320.12 = 135,601.32 : x
  2. Step 2: Convert to fraction form
    216,170.40/298,320.12 = 135,601.32/x
  3. Step 3: Cross multiply
    216,170.40x = 298,320.12 × 135,601.32
  4. Step 4: Simplify right side
    216,170.40x = 40,452,602,054.56
  5. Step 5: Solve for x
    x = 40,452,602,054.56/216,170.40
  6. Step 6: Final answer
    x = 187,132.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.