Home / 205,051.28-282,648.52-140,408.77

Finding the Fourth Proportional to 205,051.28, 282,648.52 and 140,408.77

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Solution

The fourth proportional to 205,051.28, 282,648.52 and 140,408.77 is: 193,543.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,051.28 : 282,648.52 = 140,408.77 : x
  2. Step 2: Convert to fraction form
    205,051.28/282,648.52 = 140,408.77/x
  3. Step 3: Cross multiply
    205,051.28x = 282,648.52 × 140,408.77
  4. Step 4: Simplify right side
    205,051.28x = 39,686,332,401.17
  5. Step 5: Solve for x
    x = 39,686,332,401.17/205,051.28
  6. Step 6: Final answer
    x = 193,543.45

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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.