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Finding the Fourth Proportional to 330,308.71, 455,832.02 and 187,098.48

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Solution

The fourth proportional to 330,308.71, 455,832.02 and 187,098.48 is: 258,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,308.71 : 455,832.02 = 187,098.48 : x
  2. Step 2: Convert to fraction form
    330,308.71/455,832.02 = 187,098.48/x
  3. Step 3: Cross multiply
    330,308.71x = 455,832.02 × 187,098.48
  4. Step 4: Simplify right side
    330,308.71x = 85,285,478,545.08
  5. Step 5: Solve for x
    x = 85,285,478,545.08/330,308.71
  6. Step 6: Final answer
    x = 258,199.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.