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Finding the Fourth Proportional to 438,409.13, 605,005.02 and 237,205.13

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Solution

The fourth proportional to 438,409.13, 605,005.02 and 237,205.13 is: 327,343.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,409.13 : 605,005.02 = 237,205.13 : x
  2. Step 2: Convert to fraction form
    438,409.13/605,005.02 = 237,205.13/x
  3. Step 3: Cross multiply
    438,409.13x = 605,005.02 × 237,205.13
  4. Step 4: Simplify right side
    438,409.13x = 143,510,291,394.73
  5. Step 5: Solve for x
    x = 143,510,291,394.73/438,409.13
  6. Step 6: Final answer
    x = 327,343.30

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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.