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Finding the Fourth Proportional to 330,001.60, 495,196.80 and 218,005.60

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Solution

The fourth proportional to 330,001.60, 495,196.80 and 218,005.60 is: 327,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,001.60 : 495,196.80 = 218,005.60 : x
  2. Step 2: Convert to fraction form
    330,001.60/495,196.80 = 218,005.60/x
  3. Step 3: Cross multiply
    330,001.60x = 495,196.80 × 218,005.60
  4. Step 4: Simplify right side
    330,001.60x = 107,955,675,502.08
  5. Step 5: Solve for x
    x = 107,955,675,502.08/330,001.60
  6. Step 6: Final answer
    x = 327,136.82

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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.