Home / 209,985.77-314,979.84-52,214.24

Finding the Fourth Proportional to 209,985.77, 314,979.84 and 52,214.24

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Solution

The fourth proportional to 209,985.77, 314,979.84 and 52,214.24 is: 78,321.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,985.77 : 314,979.84 = 52,214.24 : x
  2. Step 2: Convert to fraction form
    209,985.77/314,979.84 = 52,214.24/x
  3. Step 3: Cross multiply
    209,985.77x = 314,979.84 × 52,214.24
  4. Step 4: Simplify right side
    209,985.77x = 16,446,432,960.92
  5. Step 5: Solve for x
    x = 16,446,432,960.92/209,985.77
  6. Step 6: Final answer
    x = 78,321.65

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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.