Home / 385,554.45-578,317.27-101,242.43

Finding the Fourth Proportional to 385,554.45, 578,317.27 and 101,242.43

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Solution

The fourth proportional to 385,554.45, 578,317.27 and 101,242.43 is: 151,859.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,554.45 : 578,317.27 = 101,242.43 : x
  2. Step 2: Convert to fraction form
    385,554.45/578,317.27 = 101,242.43/x
  3. Step 3: Cross multiply
    385,554.45x = 578,317.27 × 101,242.43
  4. Step 4: Simplify right side
    385,554.45x = 58,550,245,725.77
  5. Step 5: Solve for x
    x = 58,550,245,725.77/385,554.45
  6. Step 6: Final answer
    x = 151,859.86

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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.