Home / 222,333.15-306,808.12-130,439.67

Finding the Fourth Proportional to 222,333.15, 306,808.12 and 130,439.67

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Solution

The fourth proportional to 222,333.15, 306,808.12 and 130,439.67 is: 179,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,333.15 : 306,808.12 = 130,439.67 : x
  2. Step 2: Convert to fraction form
    222,333.15/306,808.12 = 130,439.67/x
  3. Step 3: Cross multiply
    222,333.15x = 306,808.12 × 130,439.67
  4. Step 4: Simplify right side
    222,333.15x = 40,019,948,938.64
  5. Step 5: Solve for x
    x = 40,019,948,938.64/222,333.15
  6. Step 6: Final answer
    x = 179,999.92

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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.