Home / 209,284.41-313,919.56-90,955.76

Finding the Fourth Proportional to 209,284.41, 313,919.56 and 90,955.76

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Solution

The fourth proportional to 209,284.41, 313,919.56 and 90,955.76 is: 136,430.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,284.41 : 313,919.56 = 90,955.76 : x
  2. Step 2: Convert to fraction form
    209,284.41/313,919.56 = 90,955.76/x
  3. Step 3: Cross multiply
    209,284.41x = 313,919.56 × 90,955.76
  4. Step 4: Simplify right side
    209,284.41x = 28,552,792,158.67
  5. Step 5: Solve for x
    x = 28,552,792,158.67/209,284.41
  6. Step 6: Final answer
    x = 136,430.57

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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.