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Finding the Fourth Proportional to 297,008.60, 445,512.90 and 83,776.10

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Solution

The fourth proportional to 297,008.60, 445,512.90 and 83,776.10 is: 125,664.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,008.60 : 445,512.90 = 83,776.10 : x
  2. Step 2: Convert to fraction form
    297,008.60/445,512.90 = 83,776.10/x
  3. Step 3: Cross multiply
    297,008.60x = 445,512.90 × 83,776.10
  4. Step 4: Simplify right side
    297,008.60x = 37,323,333,261.69
  5. Step 5: Solve for x
    x = 37,323,333,261.69/297,008.60
  6. Step 6: Final answer
    x = 125,664.15

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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.