Home / 215,920.81-297,816.46-187,189.10

Finding the Fourth Proportional to 215,920.81, 297,816.46 and 187,189.10

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Solution

The fourth proportional to 215,920.81, 297,816.46 and 187,189.10 is: 258,187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,920.81 : 297,816.46 = 187,189.10 : x
  2. Step 2: Convert to fraction form
    215,920.81/297,816.46 = 187,189.10/x
  3. Step 3: Cross multiply
    215,920.81x = 297,816.46 × 187,189.10
  4. Step 4: Simplify right side
    215,920.81x = 55,747,994,272.34
  5. Step 5: Solve for x
    x = 55,747,994,272.34/215,920.81
  6. Step 6: Final answer
    x = 258,187.22

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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.