Home / 318,218.68-439,032.50-197,316.46

Finding the Fourth Proportional to 318,218.68, 439,032.50 and 197,316.46

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Solution

The fourth proportional to 318,218.68, 439,032.50 and 197,316.46 is: 272,228.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,218.68 : 439,032.50 = 197,316.46 : x
  2. Step 2: Convert to fraction form
    318,218.68/439,032.50 = 197,316.46/x
  3. Step 3: Cross multiply
    318,218.68x = 439,032.50 × 197,316.46
  4. Step 4: Simplify right side
    318,218.68x = 86,628,338,724.95
  5. Step 5: Solve for x
    x = 86,628,338,724.95/318,218.68
  6. Step 6: Final answer
    x = 272,228.96

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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.