Home / 401,449.37-602,174.50-135,187.58

Finding the Fourth Proportional to 401,449.37, 602,174.50 and 135,187.58

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Solution

The fourth proportional to 401,449.37, 602,174.50 and 135,187.58 is: 202,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,449.37 : 602,174.50 = 135,187.58 : x
  2. Step 2: Convert to fraction form
    401,449.37/602,174.50 = 135,187.58/x
  3. Step 3: Cross multiply
    401,449.37x = 602,174.50 × 135,187.58
  4. Step 4: Simplify right side
    401,449.37x = 81,406,514,560.18
  5. Step 5: Solve for x
    x = 81,406,514,560.18/401,449.37
  6. Step 6: Final answer
    x = 202,781.53

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1.5x scale

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.