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Finding the Fourth Proportional to 268,486.02, 370,510.92 and 147,629.40

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Solution

The fourth proportional to 268,486.02, 370,510.92 and 147,629.40 is: 203,728.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,486.02 : 370,510.92 = 147,629.40 : x
  2. Step 2: Convert to fraction form
    268,486.02/370,510.92 = 147,629.40/x
  3. Step 3: Cross multiply
    268,486.02x = 370,510.92 × 147,629.40
  4. Step 4: Simplify right side
    268,486.02x = 54,698,304,813.05
  5. Step 5: Solve for x
    x = 54,698,304,813.05/268,486.02
  6. Step 6: Final answer
    x = 203,728.69

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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.