Home / 380,039.21-524,225.63-250,978.88

Finding the Fourth Proportional to 380,039.21, 524,225.63 and 250,978.88

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Solution

The fourth proportional to 380,039.21, 524,225.63 and 250,978.88 is: 346,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,039.21 : 524,225.63 = 250,978.88 : x
  2. Step 2: Convert to fraction form
    380,039.21/524,225.63 = 250,978.88/x
  3. Step 3: Cross multiply
    380,039.21x = 524,225.63 × 250,978.88
  4. Step 4: Simplify right side
    380,039.21x = 131,569,561,484.69
  5. Step 5: Solve for x
    x = 131,569,561,484.69/380,039.21
  6. Step 6: Final answer
    x = 346,199.97

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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.