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Finding the Fourth Proportional to 199,435.73, 299,088.54 and 66,280.23

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Solution

The fourth proportional to 199,435.73, 299,088.54 and 66,280.23 is: 99,398.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,435.73 : 299,088.54 = 66,280.23 : x
  2. Step 2: Convert to fraction form
    199,435.73/299,088.54 = 66,280.23/x
  3. Step 3: Cross multiply
    199,435.73x = 299,088.54 × 66,280.23
  4. Step 4: Simplify right side
    199,435.73x = 19,823,657,221.56
  5. Step 5: Solve for x
    x = 19,823,657,221.56/199,435.73
  6. Step 6: Final answer
    x = 99,398.73

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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.