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Finding the Fourth Proportional to 268,521, 370,551.12 and 147,662.16

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Solution

The fourth proportional to 268,521, 370,551.12 and 147,662.16 is: 203,769.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,521 : 370,551.12 = 147,662.16 : x
  2. Step 2: Convert to fraction form
    268,521/370,551.12 = 147,662.16/x
  3. Step 3: Cross multiply
    268,521x = 370,551.12 × 147,662.16
  4. Step 4: Simplify right side
    268,521x = 54,716,378,769.62
  5. Step 5: Solve for x
    x = 54,716,378,769.62/268,521
  6. Step 6: Final answer
    x = 203,769.46

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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.