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Finding the Fourth Proportional to 401,588.04, 554,150.42 and 240,438.90

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Solution

The fourth proportional to 401,588.04, 554,150.42 and 240,438.90 is: 331,781.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,588.04 : 554,150.42 = 240,438.90 : x
  2. Step 2: Convert to fraction form
    401,588.04/554,150.42 = 240,438.90/x
  3. Step 3: Cross multiply
    401,588.04x = 554,150.42 × 240,438.90
  4. Step 4: Simplify right side
    401,588.04x = 133,239,317,419.34
  5. Step 5: Solve for x
    x = 133,239,317,419.34/401,588.04
  6. Step 6: Final answer
    x = 331,781.09

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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.