Home / 386,184.90-578,342.18-196,145.40

Finding the Fourth Proportional to 386,184.90, 578,342.18 and 196,145.40

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Solution

The fourth proportional to 386,184.90, 578,342.18 and 196,145.40 is: 293,743.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,184.90 : 578,342.18 = 196,145.40 : x
  2. Step 2: Convert to fraction form
    386,184.90/578,342.18 = 196,145.40/x
  3. Step 3: Cross multiply
    386,184.90x = 578,342.18 × 196,145.40
  4. Step 4: Simplify right side
    386,184.90x = 113,439,158,232.97
  5. Step 5: Solve for x
    x = 113,439,158,232.97/386,184.90
  6. Step 6: Final answer
    x = 293,743.12

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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.