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Finding the Fourth Proportional to 216,482.70, 298,552.68 and 135,917.76

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Solution

The fourth proportional to 216,482.70, 298,552.68 and 135,917.76 is: 187,445.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,482.70 : 298,552.68 = 135,917.76 : x
  2. Step 2: Convert to fraction form
    216,482.70/298,552.68 = 135,917.76/x
  3. Step 3: Cross multiply
    216,482.70x = 298,552.68 × 135,917.76
  4. Step 4: Simplify right side
    216,482.70x = 40,578,611,507.60
  5. Step 5: Solve for x
    x = 40,578,611,507.60/216,482.70
  6. Step 6: Final answer
    x = 187,445.05

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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.