Home / 318,799.15-439,938.51-180,976.89

Finding the Fourth Proportional to 318,799.15, 439,938.51 and 180,976.89

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Solution

The fourth proportional to 318,799.15, 439,938.51 and 180,976.89 is: 249,745.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,799.15 : 439,938.51 = 180,976.89 : x
  2. Step 2: Convert to fraction form
    318,799.15/439,938.51 = 180,976.89/x
  3. Step 3: Cross multiply
    318,799.15x = 439,938.51 × 180,976.89
  4. Step 4: Simplify right side
    318,799.15x = 79,618,702,652.37
  5. Step 5: Solve for x
    x = 79,618,702,652.37/318,799.15
  6. Step 6: Final answer
    x = 249,745.65

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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.