Home / 317,913.18-438,718.86-174,672.78

Finding the Fourth Proportional to 317,913.18, 438,718.86 and 174,672.78

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Solution

The fourth proportional to 317,913.18, 438,718.86 and 174,672.78 is: 241,047.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,913.18 : 438,718.86 = 174,672.78 : x
  2. Step 2: Convert to fraction form
    317,913.18/438,718.86 = 174,672.78/x
  3. Step 3: Cross multiply
    317,913.18x = 438,718.86 × 174,672.78
  4. Step 4: Simplify right side
    317,913.18x = 76,632,242,914.63
  5. Step 5: Solve for x
    x = 76,632,242,914.63/317,913.18
  6. Step 6: Final answer
    x = 241,047.71

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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.