Home / 380,606.43-525,268.89-210,856.35

Finding the Fourth Proportional to 380,606.43, 525,268.89 and 210,856.35

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Solution

The fourth proportional to 380,606.43, 525,268.89 and 210,856.35 is: 290,999.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,606.43 : 525,268.89 = 210,856.35 : x
  2. Step 2: Convert to fraction form
    380,606.43/525,268.89 = 210,856.35/x
  3. Step 3: Cross multiply
    380,606.43x = 525,268.89 × 210,856.35
  4. Step 4: Simplify right side
    380,606.43x = 110,756,280,913.95
  5. Step 5: Solve for x
    x = 110,756,280,913.95/380,606.43
  6. Step 6: Final answer
    x = 290,999.50

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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.