Home / 349,775.20-524,633.64-209,431.36

Finding the Fourth Proportional to 349,775.20, 524,633.64 and 209,431.36

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Solution

The fourth proportional to 349,775.20, 524,633.64 and 209,431.36 is: 314,129.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,775.20 : 524,633.64 = 209,431.36 : x
  2. Step 2: Convert to fraction form
    349,775.20/524,633.64 = 209,431.36/x
  3. Step 3: Cross multiply
    349,775.20x = 524,633.64 × 209,431.36
  4. Step 4: Simplify right side
    349,775.20x = 109,874,736,726.95
  5. Step 5: Solve for x
    x = 109,874,736,726.95/349,775.20
  6. Step 6: Final answer
    x = 314,129.58

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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.