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Finding the Fourth Proportional to 370,476.61, 511,258.23 and 200,710.72

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Solution

The fourth proportional to 370,476.61, 511,258.23 and 200,710.72 is: 276,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,476.61 : 511,258.23 = 200,710.72 : x
  2. Step 2: Convert to fraction form
    370,476.61/511,258.23 = 200,710.72/x
  3. Step 3: Cross multiply
    370,476.61x = 511,258.23 × 200,710.72
  4. Step 4: Simplify right side
    370,476.61x = 102,615,007,449.23
  5. Step 5: Solve for x
    x = 102,615,007,449.23/370,476.61
  6. Step 6: Final answer
    x = 276,981.07

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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.