Home / 380,426.31-524,967.30-210,649.50

Finding the Fourth Proportional to 380,426.31, 524,967.30 and 210,649.50

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Solution

The fourth proportional to 380,426.31, 524,967.30 and 210,649.50 is: 290,684.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,426.31 : 524,967.30 = 210,649.50 : x
  2. Step 2: Convert to fraction form
    380,426.31/524,967.30 = 210,649.50/x
  3. Step 3: Cross multiply
    380,426.31x = 524,967.30 × 210,649.50
  4. Step 4: Simplify right side
    380,426.31x = 110,584,099,261.35
  5. Step 5: Solve for x
    x = 110,584,099,261.35/380,426.31
  6. Step 6: Final answer
    x = 290,684.68

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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.