Home / 384,867.50-531,143.13-223,722.05

Finding the Fourth Proportional to 384,867.50, 531,143.13 and 223,722.05

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Solution

The fourth proportional to 384,867.50, 531,143.13 and 223,722.05 is: 308,751.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,867.50 : 531,143.13 = 223,722.05 : x
  2. Step 2: Convert to fraction form
    384,867.50/531,143.13 = 223,722.05/x
  3. Step 3: Cross multiply
    384,867.50x = 531,143.13 × 223,722.05
  4. Step 4: Simplify right side
    384,867.50x = 118,828,427,231.30
  5. Step 5: Solve for x
    x = 118,828,427,231.30/384,867.50
  6. Step 6: Final answer
    x = 308,751.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.