Home / 319,890.51-441,592.61-211,058.91

Finding the Fourth Proportional to 319,890.51, 441,592.61 and 211,058.91

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Solution

The fourth proportional to 319,890.51, 441,592.61 and 211,058.91 is: 291,356.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,890.51 : 441,592.61 = 211,058.91 : x
  2. Step 2: Convert to fraction form
    319,890.51/441,592.61 = 211,058.91/x
  3. Step 3: Cross multiply
    319,890.51x = 441,592.61 × 211,058.91
  4. Step 4: Simplify right side
    319,890.51x = 93,202,053,875.36
  5. Step 5: Solve for x
    x = 93,202,053,875.36/319,890.51
  6. Step 6: Final answer
    x = 291,356.11

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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.