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Finding the Fourth Proportional to 216,027.53, 298,034.84 and 135,314.54

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Solution

The fourth proportional to 216,027.53, 298,034.84 and 135,314.54 is: 186,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,027.53 : 298,034.84 = 135,314.54 : x
  2. Step 2: Convert to fraction form
    216,027.53/298,034.84 = 135,314.54/x
  3. Step 3: Cross multiply
    216,027.53x = 298,034.84 × 135,314.54
  4. Step 4: Simplify right side
    216,027.53x = 40,328,447,278.57
  5. Step 5: Solve for x
    x = 40,328,447,278.57/216,027.53
  6. Step 6: Final answer
    x = 186,681.98

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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.