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Finding the Fourth Proportional to 268,603.52, 370,665.12 and 147,744.80

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Solution

The fourth proportional to 268,603.52, 370,665.12 and 147,744.80 is: 203,883.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,603.52 : 370,665.12 = 147,744.80 : x
  2. Step 2: Convert to fraction form
    268,603.52/370,665.12 = 147,744.80/x
  3. Step 3: Cross multiply
    268,603.52x = 370,665.12 × 147,744.80
  4. Step 4: Simplify right side
    268,603.52x = 54,763,844,021.38
  5. Step 5: Solve for x
    x = 54,763,844,021.38/268,603.52
  6. Step 6: Final answer
    x = 203,883.57

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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.