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Finding the Fourth Proportional to 199,929.44, 299,909.61 and 66,810.16

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Solution

The fourth proportional to 199,929.44, 299,909.61 and 66,810.16 is: 100,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,929.44 : 299,909.61 = 66,810.16 : x
  2. Step 2: Convert to fraction form
    199,929.44/299,909.61 = 66,810.16/x
  3. Step 3: Cross multiply
    199,929.44x = 299,909.61 × 66,810.16
  4. Step 4: Simplify right side
    199,929.44x = 20,037,008,695.59
  5. Step 5: Solve for x
    x = 20,037,008,695.59/199,929.44
  6. Step 6: Final answer
    x = 100,220.40

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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.