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Finding the Fourth Proportional to 286,397.17, 395,240.41 and 159,072.77

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Solution

The fourth proportional to 286,397.17, 395,240.41 and 159,072.77 is: 219,527.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,397.17 : 395,240.41 = 159,072.77 : x
  2. Step 2: Convert to fraction form
    286,397.17/395,240.41 = 159,072.77/x
  3. Step 3: Cross multiply
    286,397.17x = 395,240.41 × 159,072.77
  4. Step 4: Simplify right side
    286,397.17x = 62,871,986,834.64
  5. Step 5: Solve for x
    x = 62,871,986,834.64/286,397.17
  6. Step 6: Final answer
    x = 219,527.26

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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.