Home / 401,551.03-602,382.10-135,387.66

Finding the Fourth Proportional to 401,551.03, 602,382.10 and 135,387.66

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Solution

The fourth proportional to 401,551.03, 602,382.10 and 135,387.66 is: 203,100.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,551.03 : 602,382.10 = 135,387.66 : x
  2. Step 2: Convert to fraction form
    401,551.03/602,382.10 = 135,387.66/x
  3. Step 3: Cross multiply
    401,551.03x = 602,382.10 × 135,387.66
  4. Step 4: Simplify right side
    401,551.03x = 81,555,102,944.89
  5. Step 5: Solve for x
    x = 81,555,102,944.89/401,551.03
  6. Step 6: Final answer
    x = 203,100.22

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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.