Home / 215,808.49-297,812.46-120,312.73

Finding the Fourth Proportional to 215,808.49, 297,812.46 and 120,312.73

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Solution

The fourth proportional to 215,808.49, 297,812.46 and 120,312.73 is: 166,029.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,808.49 : 297,812.46 = 120,312.73 : x
  2. Step 2: Convert to fraction form
    215,808.49/297,812.46 = 120,312.73/x
  3. Step 3: Cross multiply
    215,808.49x = 297,812.46 × 120,312.73
  4. Step 4: Simplify right side
    215,808.49x = 35,830,630,090.62
  5. Step 5: Solve for x
    x = 35,830,630,090.62/215,808.49
  6. Step 6: Final answer
    x = 166,029.75

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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.