Home / 290,104.24-434,857-121,722.34

Finding the Fourth Proportional to 290,104.24, 434,857 and 121,722.34

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Solution

The fourth proportional to 290,104.24, 434,857 and 121,722.34 is: 182,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,104.24 : 434,857 = 121,722.34 : x
  2. Step 2: Convert to fraction form
    290,104.24/434,857 = 121,722.34/x
  3. Step 3: Cross multiply
    290,104.24x = 434,857 × 121,722.34
  4. Step 4: Simplify right side
    290,104.24x = 52,931,811,605.38
  5. Step 5: Solve for x
    x = 52,931,811,605.38/290,104.24
  6. Step 6: Final answer
    x = 182,457.90

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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.