Home / 209,457.12-314,234.28-69,207.24

Finding the Fourth Proportional to 209,457.12, 314,234.28 and 69,207.24

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Solution

The fourth proportional to 209,457.12, 314,234.28 and 69,207.24 is: 103,826.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,457.12 : 314,234.28 = 69,207.24 : x
  2. Step 2: Convert to fraction form
    209,457.12/314,234.28 = 69,207.24/x
  3. Step 3: Cross multiply
    209,457.12x = 314,234.28 × 69,207.24
  4. Step 4: Simplify right side
    209,457.12x = 21,747,287,232.19
  5. Step 5: Solve for x
    x = 21,747,287,232.19/209,457.12
  6. Step 6: Final answer
    x = 103,826.92

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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.