Home / 209,979.34-314,969.24-52,207.81

Finding the Fourth Proportional to 209,979.34, 314,969.24 and 52,207.81

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Solution

The fourth proportional to 209,979.34, 314,969.24 and 52,207.81 is: 78,311.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,979.34 : 314,969.24 = 52,207.81 : x
  2. Step 2: Convert to fraction form
    209,979.34/314,969.24 = 52,207.81/x
  3. Step 3: Cross multiply
    209,979.34x = 314,969.24 × 52,207.81
  4. Step 4: Simplify right side
    209,979.34x = 16,443,854,237.76
  5. Step 5: Solve for x
    x = 16,443,854,237.76/209,979.34
  6. Step 6: Final answer
    x = 78,311.77

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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.