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Finding the Fourth Proportional to 277,079.40, 414,869.51 and 143,679.23

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Solution

The fourth proportional to 277,079.40, 414,869.51 and 143,679.23 is: 215,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,079.40 : 414,869.51 = 143,679.23 : x
  2. Step 2: Convert to fraction form
    277,079.40/414,869.51 = 143,679.23/x
  3. Step 3: Cross multiply
    277,079.40x = 414,869.51 × 143,679.23
  4. Step 4: Simplify right side
    277,079.40x = 59,608,131,747.28
  5. Step 5: Solve for x
    x = 59,608,131,747.28/277,079.40
  6. Step 6: Final answer
    x = 215,130.15

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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.