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Finding the Fourth Proportional to 144,271.70, 216,407.55 and 109,279.70

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Solution

The fourth proportional to 144,271.70, 216,407.55 and 109,279.70 is: 163,919.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,271.70 : 216,407.55 = 109,279.70 : x
  2. Step 2: Convert to fraction form
    144,271.70/216,407.55 = 109,279.70/x
  3. Step 3: Cross multiply
    144,271.70x = 216,407.55 × 109,279.70
  4. Step 4: Simplify right side
    144,271.70x = 23,648,952,141.74
  5. Step 5: Solve for x
    x = 23,648,952,141.74/144,271.70
  6. Step 6: Final answer
    x = 163,919.55

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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.