Home / 318,552.12-478,049.50-205,953.06

Finding the Fourth Proportional to 318,552.12, 478,049.50 and 205,953.06

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Solution

The fourth proportional to 318,552.12, 478,049.50 and 205,953.06 is: 309,072.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,552.12 : 478,049.50 = 205,953.06 : x
  2. Step 2: Convert to fraction form
    318,552.12/478,049.50 = 205,953.06/x
  3. Step 3: Cross multiply
    318,552.12x = 478,049.50 × 205,953.06
  4. Step 4: Simplify right side
    318,552.12x = 98,455,754,214.57
  5. Step 5: Solve for x
    x = 98,455,754,214.57/318,552.12
  6. Step 6: Final answer
    x = 309,072.67

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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.