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Finding the Fourth Proportional to 310,606.24, 428,607 and 181,574.88

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Solution

The fourth proportional to 310,606.24, 428,607 and 181,574.88 is: 250,556.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,606.24 : 428,607 = 181,574.88 : x
  2. Step 2: Convert to fraction form
    310,606.24/428,607 = 181,574.88/x
  3. Step 3: Cross multiply
    310,606.24x = 428,607 × 181,574.88
  4. Step 4: Simplify right side
    310,606.24x = 77,824,264,592.16
  5. Step 5: Solve for x
    x = 77,824,264,592.16/310,606.24
  6. Step 6: Final answer
    x = 250,556.02

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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.