Home / 317,771.18-438,522.90-174,530.78

Finding the Fourth Proportional to 317,771.18, 438,522.90 and 174,530.78

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Solution

The fourth proportional to 317,771.18, 438,522.90 and 174,530.78 is: 240,851.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,771.18 : 438,522.90 = 174,530.78 : x
  2. Step 2: Convert to fraction form
    317,771.18/438,522.90 = 174,530.78/x
  3. Step 3: Cross multiply
    317,771.18x = 438,522.90 × 174,530.78
  4. Step 4: Simplify right side
    317,771.18x = 76,535,743,784.86
  5. Step 5: Solve for x
    x = 76,535,743,784.86/317,771.18
  6. Step 6: Final answer
    x = 240,851.75

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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.