Home / 319,477.23-440,876.12-176,243.31

Finding the Fourth Proportional to 319,477.23, 440,876.12 and 176,243.31

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Solution

The fourth proportional to 319,477.23, 440,876.12 and 176,243.31 is: 243,214.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,477.23 : 440,876.12 = 176,243.31 : x
  2. Step 2: Convert to fraction form
    319,477.23/440,876.12 = 176,243.31/x
  3. Step 3: Cross multiply
    319,477.23x = 440,876.12 × 176,243.31
  4. Step 4: Simplify right side
    319,477.23x = 77,701,465,807.54
  5. Step 5: Solve for x
    x = 77,701,465,807.54/319,477.23
  6. Step 6: Final answer
    x = 243,214.41

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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.