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Finding the Fourth Proportional to 268,007.81, 369,851.49 and 147,156.89

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Solution

The fourth proportional to 268,007.81, 369,851.49 and 147,156.89 is: 203,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,007.81 : 369,851.49 = 147,156.89 : x
  2. Step 2: Convert to fraction form
    268,007.81/369,851.49 = 147,156.89/x
  3. Step 3: Cross multiply
    268,007.81x = 369,851.49 × 147,156.89
  4. Step 4: Simplify right side
    268,007.81x = 54,426,193,181.01
  5. Step 5: Solve for x
    x = 54,426,193,181.01/268,007.81
  6. Step 6: Final answer
    x = 203,076.90

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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.