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Finding the Fourth Proportional to 538,642.80, 808,157.07 and 230,765.58

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Solution

The fourth proportional to 538,642.80, 808,157.07 and 230,765.58 is: 346,231.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,642.80 : 808,157.07 = 230,765.58 : x
  2. Step 2: Convert to fraction form
    538,642.80/808,157.07 = 230,765.58/x
  3. Step 3: Cross multiply
    538,642.80x = 808,157.07 × 230,765.58
  4. Step 4: Simplify right side
    538,642.80x = 186,494,834,989.65
  5. Step 5: Solve for x
    x = 186,494,834,989.65/538,642.80
  6. Step 6: Final answer
    x = 346,231.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.