Home / 318,020.43-438,878.72-174,785.55

Finding the Fourth Proportional to 318,020.43, 438,878.72 and 174,785.55

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Solution

The fourth proportional to 318,020.43, 438,878.72 and 174,785.55 is: 241,209.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,020.43 : 438,878.72 = 174,785.55 : x
  2. Step 2: Convert to fraction form
    318,020.43/438,878.72 = 174,785.55/x
  3. Step 3: Cross multiply
    318,020.43x = 438,878.72 × 174,785.55
  4. Step 4: Simplify right side
    318,020.43x = 76,709,657,584.57
  5. Step 5: Solve for x
    x = 76,709,657,584.57/318,020.43
  6. Step 6: Final answer
    x = 241,209.84

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1.5x scale

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.