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Finding the Fourth Proportional to 143,392.80, 215,108.40 and 49,927.20

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Solution

The fourth proportional to 143,392.80, 215,108.40 and 49,927.20 is: 74,897.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,392.80 : 215,108.40 = 49,927.20 : x
  2. Step 2: Convert to fraction form
    143,392.80/215,108.40 = 49,927.20/x
  3. Step 3: Cross multiply
    143,392.80x = 215,108.40 × 49,927.20
  4. Step 4: Simplify right side
    143,392.80x = 10,739,760,108.48
  5. Step 5: Solve for x
    x = 10,739,760,108.48/143,392.80
  6. Step 6: Final answer
    x = 74,897.49

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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.