Home / 385,350.14-531,774.66-210,919.46

Finding the Fourth Proportional to 385,350.14, 531,774.66 and 210,919.46

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Solution

The fourth proportional to 385,350.14, 531,774.66 and 210,919.46 is: 291,064.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,350.14 : 531,774.66 = 210,919.46 : x
  2. Step 2: Convert to fraction form
    385,350.14/531,774.66 = 210,919.46/x
  3. Step 3: Cross multiply
    385,350.14x = 531,774.66 × 210,919.46
  4. Step 4: Simplify right side
    385,350.14x = 112,161,624,128.88
  5. Step 5: Solve for x
    x = 112,161,624,128.88/385,350.14
  6. Step 6: Final answer
    x = 291,064.18

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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.