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Finding the Fourth Proportional to 215,898.60, 297,820.26 and 126,457.32

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Solution

The fourth proportional to 215,898.60, 297,820.26 and 126,457.32 is: 174,440.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,898.60 : 297,820.26 = 126,457.32 : x
  2. Step 2: Convert to fraction form
    215,898.60/297,820.26 = 126,457.32/x
  3. Step 3: Cross multiply
    215,898.60x = 297,820.26 × 126,457.32
  4. Step 4: Simplify right side
    215,898.60x = 37,661,551,921.30
  5. Step 5: Solve for x
    x = 37,661,551,921.30/215,898.60
  6. Step 6: Final answer
    x = 174,440.93

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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.