Home / 385,725.40-578,670.72-196,212.13

Finding the Fourth Proportional to 385,725.40, 578,670.72 and 196,212.13

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Solution

The fourth proportional to 385,725.40, 578,670.72 and 196,212.13 is: 294,360.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,725.40 : 578,670.72 = 196,212.13 : x
  2. Step 2: Convert to fraction form
    385,725.40/578,670.72 = 196,212.13/x
  3. Step 3: Cross multiply
    385,725.40x = 578,670.72 × 196,212.13
  4. Step 4: Simplify right side
    385,725.40x = 113,542,214,539.83
  5. Step 5: Solve for x
    x = 113,542,214,539.83/385,725.40
  6. Step 6: Final answer
    x = 294,360.22

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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.