Home / 318,746.31-439,871.22-191,424.03

Finding the Fourth Proportional to 318,746.31, 439,871.22 and 191,424.03

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Solution

The fourth proportional to 318,746.31, 439,871.22 and 191,424.03 is: 264,165.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,746.31 : 439,871.22 = 191,424.03 : x
  2. Step 2: Convert to fraction form
    318,746.31/439,871.22 = 191,424.03/x
  3. Step 3: Cross multiply
    318,746.31x = 439,871.22 × 191,424.03
  4. Step 4: Simplify right side
    318,746.31x = 84,201,921,613.42
  5. Step 5: Solve for x
    x = 84,201,921,613.42/318,746.31
  6. Step 6: Final answer
    x = 264,165.95

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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.