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Finding the Fourth Proportional to 144,886.40, 217,329.60 and 120,003.20

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Solution

The fourth proportional to 144,886.40, 217,329.60 and 120,003.20 is: 180,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,886.40 : 217,329.60 = 120,003.20 : x
  2. Step 2: Convert to fraction form
    144,886.40/217,329.60 = 120,003.20/x
  3. Step 3: Cross multiply
    144,886.40x = 217,329.60 × 120,003.20
  4. Step 4: Simplify right side
    144,886.40x = 26,080,247,454.72
  5. Step 5: Solve for x
    x = 26,080,247,454.72/144,886.40
  6. Step 6: Final answer
    x = 180,004.80

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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.