Home / 403,822.80-605,005.20-235,205.10

Finding the Fourth Proportional to 403,822.80, 605,005.20 and 235,205.10

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Solution

The fourth proportional to 403,822.80, 605,005.20 and 235,205.10 is: 352,383.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,822.80 : 605,005.20 = 235,205.10 : x
  2. Step 2: Convert to fraction form
    403,822.80/605,005.20 = 235,205.10/x
  3. Step 3: Cross multiply
    403,822.80x = 605,005.20 × 235,205.10
  4. Step 4: Simplify right side
    403,822.80x = 142,300,308,566.52
  5. Step 5: Solve for x
    x = 142,300,308,566.52/403,822.80
  6. Step 6: Final answer
    x = 352,383.05

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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.