Home / 209,986.77-314,981.34-52,215.24

Finding the Fourth Proportional to 209,986.77, 314,981.34 and 52,215.24

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Solution

The fourth proportional to 209,986.77, 314,981.34 and 52,215.24 is: 78,323.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,986.77 : 314,981.34 = 52,215.24 : x
  2. Step 2: Convert to fraction form
    209,986.77/314,981.34 = 52,215.24/x
  3. Step 3: Cross multiply
    209,986.77x = 314,981.34 × 52,215.24
  4. Step 4: Simplify right side
    209,986.77x = 16,446,826,263.62
  5. Step 5: Solve for x
    x = 16,446,826,263.62/209,986.77
  6. Step 6: Final answer
    x = 78,323.15

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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.