Home / 216,257.86-298,332.29-135,645.02

Finding the Fourth Proportional to 216,257.86, 298,332.29 and 135,645.02

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Solution

The fourth proportional to 216,257.86, 298,332.29 and 135,645.02 is: 187,125.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,257.86 : 298,332.29 = 135,645.02 : x
  2. Step 2: Convert to fraction form
    216,257.86/298,332.29 = 135,645.02/x
  3. Step 3: Cross multiply
    216,257.86x = 298,332.29 × 135,645.02
  4. Step 4: Simplify right side
    216,257.86x = 40,467,289,443.70
  5. Step 5: Solve for x
    x = 40,467,289,443.70/216,257.86
  6. Step 6: Final answer
    x = 187,125.17

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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.