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Finding the Fourth Proportional to 427,605.31, 590,107.58 and 236,636.47

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Solution

The fourth proportional to 427,605.31, 590,107.58 and 236,636.47 is: 326,565.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,605.31 : 590,107.58 = 236,636.47 : x
  2. Step 2: Convert to fraction form
    427,605.31/590,107.58 = 236,636.47/x
  3. Step 3: Cross multiply
    427,605.31x = 590,107.58 × 236,636.47
  4. Step 4: Simplify right side
    427,605.31x = 139,640,974,651.44
  5. Step 5: Solve for x
    x = 139,640,974,651.44/427,605.31
  6. Step 6: Final answer
    x = 326,565.11

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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.