Home / 215,817.16-297,721.84-144,214.80

Finding the Fourth Proportional to 215,817.16, 297,721.84 and 144,214.80

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Solution

The fourth proportional to 215,817.16, 297,721.84 and 144,214.80 is: 198,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,817.16 : 297,721.84 = 144,214.80 : x
  2. Step 2: Convert to fraction form
    215,817.16/297,721.84 = 144,214.80/x
  3. Step 3: Cross multiply
    215,817.16x = 297,721.84 × 144,214.80
  4. Step 4: Simplify right side
    215,817.16x = 42,935,895,611.23
  5. Step 5: Solve for x
    x = 42,935,895,611.23/215,817.16
  6. Step 6: Final answer
    x = 198,945.70

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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.