Home / 318,346.93-439,069.80-197,419.87

Finding the Fourth Proportional to 318,346.93, 439,069.80 and 197,419.87

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Solution

The fourth proportional to 318,346.93, 439,069.80 and 197,419.87 is: 272,285.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,346.93 : 439,069.80 = 197,419.87 : x
  2. Step 2: Convert to fraction form
    318,346.93/439,069.80 = 197,419.87/x
  3. Step 3: Cross multiply
    318,346.93x = 439,069.80 × 197,419.87
  4. Step 4: Simplify right side
    318,346.93x = 86,681,102,836.93
  5. Step 5: Solve for x
    x = 86,681,102,836.93/318,346.93
  6. Step 6: Final answer
    x = 272,285.03

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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.