Home / 380,214.10-524,640.54-210,447.82

Finding the Fourth Proportional to 380,214.10, 524,640.54 and 210,447.82

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Solution

The fourth proportional to 380,214.10, 524,640.54 and 210,447.82 is: 290,387.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,214.10 : 524,640.54 = 210,447.82 : x
  2. Step 2: Convert to fraction form
    380,214.10/524,640.54 = 210,447.82/x
  3. Step 3: Cross multiply
    380,214.10x = 524,640.54 × 210,447.82
  4. Step 4: Simplify right side
    380,214.10x = 110,409,457,926.62
  5. Step 5: Solve for x
    x = 110,409,457,926.62/380,214.10
  6. Step 6: Final answer
    x = 290,387.59

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1.5x scale

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.