Home / 198,530.46-297,808.65-145,381.50

Finding the Fourth Proportional to 198,530.46, 297,808.65 and 145,381.50

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Solution

The fourth proportional to 198,530.46, 297,808.65 and 145,381.50 is: 218,081.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,530.46 : 297,808.65 = 145,381.50 : x
  2. Step 2: Convert to fraction form
    198,530.46/297,808.65 = 145,381.50/x
  3. Step 3: Cross multiply
    198,530.46x = 297,808.65 × 145,381.50
  4. Step 4: Simplify right side
    198,530.46x = 43,295,868,249.98
  5. Step 5: Solve for x
    x = 43,295,868,249.98/198,530.46
  6. Step 6: Final answer
    x = 218,081.74

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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.