Home / 371,440.15-557,191.31-118,756.60

Finding the Fourth Proportional to 371,440.15, 557,191.31 and 118,756.60

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Solution

The fourth proportional to 371,440.15, 557,191.31 and 118,756.60 is: 178,144.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,440.15 : 557,191.31 = 118,756.60 : x
  2. Step 2: Convert to fraction form
    371,440.15/557,191.31 = 118,756.60/x
  3. Step 3: Cross multiply
    371,440.15x = 557,191.31 × 118,756.60
  4. Step 4: Simplify right side
    371,440.15x = 66,170,143,538.38
  5. Step 5: Solve for x
    x = 66,170,143,538.38/371,440.15
  6. Step 6: Final answer
    x = 178,144.83

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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.