Home / 380,943.18-571,359.69-266,744.52

Finding the Fourth Proportional to 380,943.18, 571,359.69 and 266,744.52

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Solution

The fourth proportional to 380,943.18, 571,359.69 and 266,744.52 is: 400,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,943.18 : 571,359.69 = 266,744.52 : x
  2. Step 2: Convert to fraction form
    380,943.18/571,359.69 = 266,744.52/x
  3. Step 3: Cross multiply
    380,943.18x = 571,359.69 × 266,744.52
  4. Step 4: Simplify right side
    380,943.18x = 152,407,066,256.40
  5. Step 5: Solve for x
    x = 152,407,066,256.40/380,943.18
  6. Step 6: Final answer
    x = 400,078.21

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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.