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Finding the Fourth Proportional to 294,893.76, 406,683.34 and 218,602.90

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Solution

The fourth proportional to 294,893.76, 406,683.34 and 218,602.90 is: 301,471.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,893.76 : 406,683.34 = 218,602.90 : x
  2. Step 2: Convert to fraction form
    294,893.76/406,683.34 = 218,602.90/x
  3. Step 3: Cross multiply
    294,893.76x = 406,683.34 × 218,602.90
  4. Step 4: Simplify right side
    294,893.76x = 88,902,157,505.69
  5. Step 5: Solve for x
    x = 88,902,157,505.69/294,893.76
  6. Step 6: Final answer
    x = 301,471.82

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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.