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Finding the Fourth Proportional to 287,602.07, 396,892.19 and 166,814.87

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Solution

The fourth proportional to 287,602.07, 396,892.19 and 166,814.87 is: 230,205.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,602.07 : 396,892.19 = 166,814.87 : x
  2. Step 2: Convert to fraction form
    287,602.07/396,892.19 = 166,814.87/x
  3. Step 3: Cross multiply
    287,602.07x = 396,892.19 × 166,814.87
  4. Step 4: Simplify right side
    287,602.07x = 66,207,518,244.79
  5. Step 5: Solve for x
    x = 66,207,518,244.79/287,602.07
  6. Step 6: Final answer
    x = 230,205.29

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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.