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Finding the Fourth Proportional to 298,902.72, 448,862.04 and 199,700.40

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Solution

The fourth proportional to 298,902.72, 448,862.04 and 199,700.40 is: 299,889.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,902.72 : 448,862.04 = 199,700.40 : x
  2. Step 2: Convert to fraction form
    298,902.72/448,862.04 = 199,700.40/x
  3. Step 3: Cross multiply
    298,902.72x = 448,862.04 × 199,700.40
  4. Step 4: Simplify right side
    298,902.72x = 89,637,928,932.82
  5. Step 5: Solve for x
    x = 89,637,928,932.82/298,902.72
  6. Step 6: Final answer
    x = 299,889.97

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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.