Home / 310,867.47-428,997.12-176,731.47

Finding the Fourth Proportional to 310,867.47, 428,997.12 and 176,731.47

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Solution

The fourth proportional to 310,867.47, 428,997.12 and 176,731.47 is: 243,889.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,867.47 : 428,997.12 = 176,731.47 : x
  2. Step 2: Convert to fraction form
    310,867.47/428,997.12 = 176,731.47/x
  3. Step 3: Cross multiply
    310,867.47x = 428,997.12 × 176,731.47
  4. Step 4: Simplify right side
    310,867.47x = 75,817,291,643.37
  5. Step 5: Solve for x
    x = 75,817,291,643.37/310,867.47
  6. Step 6: Final answer
    x = 243,889.44

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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.