Home / 380,218.24-524,693.05-208,131.72

Finding the Fourth Proportional to 380,218.24, 524,693.05 and 208,131.72

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Solution

The fourth proportional to 380,218.24, 524,693.05 and 208,131.72 is: 287,217.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,218.24 : 524,693.05 = 208,131.72 : x
  2. Step 2: Convert to fraction form
    380,218.24/524,693.05 = 208,131.72/x
  3. Step 3: Cross multiply
    380,218.24x = 524,693.05 × 208,131.72
  4. Step 4: Simplify right side
    380,218.24x = 109,205,266,968.55
  5. Step 5: Solve for x
    x = 109,205,266,968.55/380,218.24
  6. Step 6: Final answer
    x = 287,217.33

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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.