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Finding the Fourth Proportional to 215,795.48, 297,798.08 and 120,300.12

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Solution

The fourth proportional to 215,795.48, 297,798.08 and 120,300.12 is: 166,014.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,795.48 : 297,798.08 = 120,300.12 : x
  2. Step 2: Convert to fraction form
    215,795.48/297,798.08 = 120,300.12/x
  3. Step 3: Cross multiply
    215,795.48x = 297,798.08 × 120,300.12
  4. Step 4: Simplify right side
    215,795.48x = 35,825,144,759.77
  5. Step 5: Solve for x
    x = 35,825,144,759.77/215,795.48
  6. Step 6: Final answer
    x = 166,014.34

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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.