Home / 358,983.20-538,280.40-148,383.20

Finding the Fourth Proportional to 358,983.20, 538,280.40 and 148,383.20

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Solution

The fourth proportional to 358,983.20, 538,280.40 and 148,383.20 is: 222,494.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,983.20 : 538,280.40 = 148,383.20 : x
  2. Step 2: Convert to fraction form
    358,983.20/538,280.40 = 148,383.20/x
  3. Step 3: Cross multiply
    358,983.20x = 538,280.40 × 148,383.20
  4. Step 4: Simplify right side
    358,983.20x = 79,871,768,249.28
  5. Step 5: Solve for x
    x = 79,871,768,249.28/358,983.20
  6. Step 6: Final answer
    x = 222,494.45

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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.