Home / 388,974.88-583,451.20-212,598.96

Finding the Fourth Proportional to 388,974.88, 583,451.20 and 212,598.96

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Solution

The fourth proportional to 388,974.88, 583,451.20 and 212,598.96 is: 318,892.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,974.88 : 583,451.20 = 212,598.96 : x
  2. Step 2: Convert to fraction form
    388,974.88/583,451.20 = 212,598.96/x
  3. Step 3: Cross multiply
    388,974.88x = 583,451.20 × 212,598.96
  4. Step 4: Simplify right side
    388,974.88x = 124,041,118,330.75
  5. Step 5: Solve for x
    x = 124,041,118,330.75/388,974.88
  6. Step 6: Final answer
    x = 318,892.36

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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.