Home / 251,681.28-347,319.93-138,504.03

Finding the Fourth Proportional to 251,681.28, 347,319.93 and 138,504.03

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Solution

The fourth proportional to 251,681.28, 347,319.93 and 138,504.03 is: 191,135.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,681.28 : 347,319.93 = 138,504.03 : x
  2. Step 2: Convert to fraction form
    251,681.28/347,319.93 = 138,504.03/x
  3. Step 3: Cross multiply
    251,681.28x = 347,319.93 × 138,504.03
  4. Step 4: Simplify right side
    251,681.28x = 48,105,210,004.32
  5. Step 5: Solve for x
    x = 48,105,210,004.32/251,681.28
  6. Step 6: Final answer
    x = 191,135.43

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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.