Home / 390,399.14-538,752.26-227,094.84

Finding the Fourth Proportional to 390,399.14, 538,752.26 and 227,094.84

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Solution

The fourth proportional to 390,399.14, 538,752.26 and 227,094.84 is: 313,391.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,399.14 : 538,752.26 = 227,094.84 : x
  2. Step 2: Convert to fraction form
    390,399.14/538,752.26 = 227,094.84/x
  3. Step 3: Cross multiply
    390,399.14x = 538,752.26 × 227,094.84
  4. Step 4: Simplify right side
    390,399.14x = 122,347,858,284.34
  5. Step 5: Solve for x
    x = 122,347,858,284.34/390,399.14
  6. Step 6: Final answer
    x = 313,391.72

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1.5x scale

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.