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Finding the Fourth Proportional to 247,664.68, 371,497.02 and 99,817

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Solution

The fourth proportional to 247,664.68, 371,497.02 and 99,817 is: 149,725.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,664.68 : 371,497.02 = 99,817 : x
  2. Step 2: Convert to fraction form
    247,664.68/371,497.02 = 99,817/x
  3. Step 3: Cross multiply
    247,664.68x = 371,497.02 × 99,817
  4. Step 4: Simplify right side
    247,664.68x = 37,081,718,045.34
  5. Step 5: Solve for x
    x = 37,081,718,045.34/247,664.68
  6. Step 6: Final answer
    x = 149,725.50

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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.