Home / 215,403.13-322,623.55-156,102.63

Finding the Fourth Proportional to 215,403.13, 322,623.55 and 156,102.63

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Solution

The fourth proportional to 215,403.13, 322,623.55 and 156,102.63 is: 233,805.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,403.13 : 322,623.55 = 156,102.63 : x
  2. Step 2: Convert to fraction form
    215,403.13/322,623.55 = 156,102.63/x
  3. Step 3: Cross multiply
    215,403.13x = 322,623.55 × 156,102.63
  4. Step 4: Simplify right side
    215,403.13x = 50,362,384,654.94
  5. Step 5: Solve for x
    x = 50,362,384,654.94/215,403.13
  6. Step 6: Final answer
    x = 233,805.26

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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.