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Finding the Fourth Proportional to 207,394.84, 311,141.62 and 67,153.40

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Solution

The fourth proportional to 207,394.84, 311,141.62 and 67,153.40 is: 100,746.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,394.84 : 311,141.62 = 67,153.40 : x
  2. Step 2: Convert to fraction form
    207,394.84/311,141.62 = 67,153.40/x
  3. Step 3: Cross multiply
    207,394.84x = 311,141.62 × 67,153.40
  4. Step 4: Simplify right side
    207,394.84x = 20,894,217,664.51
  5. Step 5: Solve for x
    x = 20,894,217,664.51/207,394.84
  6. Step 6: Final answer
    x = 100,746.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.