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Finding the Fourth Proportional to 401,561.04, 601,422.20 and 201,938.16

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Solution

The fourth proportional to 401,561.04, 601,422.20 and 201,938.16 is: 302,444.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,561.04 : 601,422.20 = 201,938.16 : x
  2. Step 2: Convert to fraction form
    401,561.04/601,422.20 = 201,938.16/x
  3. Step 3: Cross multiply
    401,561.04x = 601,422.20 × 201,938.16
  4. Step 4: Simplify right side
    401,561.04x = 121,450,092,451.15
  5. Step 5: Solve for x
    x = 121,450,092,451.15/401,561.04
  6. Step 6: Final answer
    x = 302,444.91

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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.