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Finding the Fourth Proportional to 247,800.75, 371,699.91 and 70,308.09

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Solution

The fourth proportional to 247,800.75, 371,699.91 and 70,308.09 is: 105,461.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,800.75 : 371,699.91 = 70,308.09 : x
  2. Step 2: Convert to fraction form
    247,800.75/371,699.91 = 70,308.09/x
  3. Step 3: Cross multiply
    247,800.75x = 371,699.91 × 70,308.09
  4. Step 4: Simplify right side
    247,800.75x = 26,133,510,725.27
  5. Step 5: Solve for x
    x = 26,133,510,725.27/247,800.75
  6. Step 6: Final answer
    x = 105,461.79

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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.