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Finding the Fourth Proportional to 199,385.82, 299,108.67 and 64,404.81

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Solution

The fourth proportional to 199,385.82, 299,108.67 and 64,404.81 is: 96,616.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,385.82 : 299,108.67 = 64,404.81 : x
  2. Step 2: Convert to fraction form
    199,385.82/299,108.67 = 64,404.81/x
  3. Step 3: Cross multiply
    199,385.82x = 299,108.67 × 64,404.81
  4. Step 4: Simplify right side
    199,385.82x = 19,264,037,060.70
  5. Step 5: Solve for x
    x = 19,264,037,060.70/199,385.82
  6. Step 6: Final answer
    x = 96,616.89

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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.