Home / 402,226.28-555,057.06-223,389.80

Finding the Fourth Proportional to 402,226.28, 555,057.06 and 223,389.80

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Solution

The fourth proportional to 402,226.28, 555,057.06 and 223,389.80 is: 308,269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,226.28 : 555,057.06 = 223,389.80 : x
  2. Step 2: Convert to fraction form
    402,226.28/555,057.06 = 223,389.80/x
  3. Step 3: Cross multiply
    402,226.28x = 555,057.06 × 223,389.80
  4. Step 4: Simplify right side
    402,226.28x = 123,994,085,621.99
  5. Step 5: Solve for x
    x = 123,994,085,621.99/402,226.28
  6. Step 6: Final answer
    x = 308,269.48

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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.