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Finding the Fourth Proportional to 508,141.71, 701,237.93 and 281,787.21

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Solution

The fourth proportional to 508,141.71, 701,237.93 and 281,787.21 is: 388,867.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,141.71 : 701,237.93 = 281,787.21 : x
  2. Step 2: Convert to fraction form
    508,141.71/701,237.93 = 281,787.21/x
  3. Step 3: Cross multiply
    508,141.71x = 701,237.93 × 281,787.21
  4. Step 4: Simplify right side
    508,141.71x = 197,599,878,431.94
  5. Step 5: Solve for x
    x = 197,599,878,431.94/508,141.71
  6. Step 6: Final answer
    x = 388,867.66

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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.