Home / 380,743.53-525,426.08-210,977.66

Finding the Fourth Proportional to 380,743.53, 525,426.08 and 210,977.66

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Solution

The fourth proportional to 380,743.53, 525,426.08 and 210,977.66 is: 291,149.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,743.53 : 525,426.08 = 210,977.66 : x
  2. Step 2: Convert to fraction form
    380,743.53/525,426.08 = 210,977.66/x
  3. Step 3: Cross multiply
    380,743.53x = 525,426.08 × 210,977.66
  4. Step 4: Simplify right side
    380,743.53x = 110,853,161,179.35
  5. Step 5: Solve for x
    x = 110,853,161,179.35/380,743.53
  6. Step 6: Final answer
    x = 291,149.17

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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.