Home / 287,484.24-431,255.52-110,139.60

Finding the Fourth Proportional to 287,484.24, 431,255.52 and 110,139.60

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Solution

The fourth proportional to 287,484.24, 431,255.52 and 110,139.60 is: 165,220.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,484.24 : 431,255.52 = 110,139.60 : x
  2. Step 2: Convert to fraction form
    287,484.24/431,255.52 = 110,139.60/x
  3. Step 3: Cross multiply
    287,484.24x = 431,255.52 × 110,139.60
  4. Step 4: Simplify right side
    287,484.24x = 47,498,310,470.59
  5. Step 5: Solve for x
    x = 47,498,310,470.59/287,484.24
  6. Step 6: Final answer
    x = 165,220.57

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1.5x scale

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.