Home / 190,679.40-286,019.10-187,180.20

Finding the Fourth Proportional to 190,679.40, 286,019.10 and 187,180.20

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Solution

The fourth proportional to 190,679.40, 286,019.10 and 187,180.20 is: 280,770.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,679.40 : 286,019.10 = 187,180.20 : x
  2. Step 2: Convert to fraction form
    190,679.40/286,019.10 = 187,180.20/x
  3. Step 3: Cross multiply
    190,679.40x = 286,019.10 × 187,180.20
  4. Step 4: Simplify right side
    190,679.40x = 53,537,112,341.82
  5. Step 5: Solve for x
    x = 53,537,112,341.82/190,679.40
  6. Step 6: Final answer
    x = 280,770.30

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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.