Home / 318,481.02-477,784.17-105,240.33

Finding the Fourth Proportional to 318,481.02, 477,784.17 and 105,240.33

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Solution

The fourth proportional to 318,481.02, 477,784.17 and 105,240.33 is: 157,881.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,481.02 : 477,784.17 = 105,240.33 : x
  2. Step 2: Convert to fraction form
    318,481.02/477,784.17 = 105,240.33/x
  3. Step 3: Cross multiply
    318,481.02x = 477,784.17 × 105,240.33
  4. Step 4: Simplify right side
    318,481.02x = 50,282,163,719.58
  5. Step 5: Solve for x
    x = 50,282,163,719.58/318,481.02
  6. Step 6: Final answer
    x = 157,881.19

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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.