Home / 482,987.10-666,488.73-268,110.30

Finding the Fourth Proportional to 482,987.10, 666,488.73 and 268,110.30

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Solution

The fourth proportional to 482,987.10, 666,488.73 and 268,110.30 is: 369,973.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,987.10 : 666,488.73 = 268,110.30 : x
  2. Step 2: Convert to fraction form
    482,987.10/666,488.73 = 268,110.30/x
  3. Step 3: Cross multiply
    482,987.10x = 666,488.73 × 268,110.30
  4. Step 4: Simplify right side
    482,987.10x = 178,692,493,346.92
  5. Step 5: Solve for x
    x = 178,692,493,346.92/482,987.10
  6. Step 6: Final answer
    x = 369,973.64

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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.