Home / 319,456.12-440,815.39-176,216.16

Finding the Fourth Proportional to 319,456.12, 440,815.39 and 176,216.16

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Solution

The fourth proportional to 319,456.12, 440,815.39 and 176,216.16 is: 243,159.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,456.12 : 440,815.39 = 176,216.16 : x
  2. Step 2: Convert to fraction form
    319,456.12/440,815.39 = 176,216.16/x
  3. Step 3: Cross multiply
    319,456.12x = 440,815.39 × 176,216.16
  4. Step 4: Simplify right side
    319,456.12x = 77,678,795,080.80
  5. Step 5: Solve for x
    x = 77,678,795,080.80/319,456.12
  6. Step 6: Final answer
    x = 243,159.52

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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.