Home / 427,953.51-641,937.56-161,839.35

Finding the Fourth Proportional to 427,953.51, 641,937.56 and 161,839.35

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Solution

The fourth proportional to 427,953.51, 641,937.56 and 161,839.35 is: 242,761.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,953.51 : 641,937.56 = 161,839.35 : x
  2. Step 2: Convert to fraction form
    427,953.51/641,937.56 = 161,839.35/x
  3. Step 3: Cross multiply
    427,953.51x = 641,937.56 × 161,839.35
  4. Step 4: Simplify right side
    427,953.51x = 103,890,756,641.79
  5. Step 5: Solve for x
    x = 103,890,756,641.79/427,953.51
  6. Step 6: Final answer
    x = 242,761.78

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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.