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Finding the Fourth Proportional to 215,203.80, 297,004.86 and 124,558.32

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Solution

The fourth proportional to 215,203.80, 297,004.86 and 124,558.32 is: 171,904.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,203.80 : 297,004.86 = 124,558.32 : x
  2. Step 2: Convert to fraction form
    215,203.80/297,004.86 = 124,558.32/x
  3. Step 3: Cross multiply
    215,203.80x = 297,004.86 × 124,558.32
  4. Step 4: Simplify right side
    215,203.80x = 36,994,426,393.44
  5. Step 5: Solve for x
    x = 36,994,426,393.44/215,203.80
  6. Step 6: Final answer
    x = 171,904.15

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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.