Home / 318,686.40-477,919.44-141,317.46

Finding the Fourth Proportional to 318,686.40, 477,919.44 and 141,317.46

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Solution

The fourth proportional to 318,686.40, 477,919.44 and 141,317.46 is: 211,927.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,686.40 : 477,919.44 = 141,317.46 : x
  2. Step 2: Convert to fraction form
    318,686.40/477,919.44 = 141,317.46/x
  3. Step 3: Cross multiply
    318,686.40x = 477,919.44 × 141,317.46
  4. Step 4: Simplify right side
    318,686.40x = 67,538,361,345.42
  5. Step 5: Solve for x
    x = 67,538,361,345.42/318,686.40
  6. Step 6: Final answer
    x = 211,927.34

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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.