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Finding the Fourth Proportional to 315,203.04, 434,978.13 and 179,237.01

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Solution

The fourth proportional to 315,203.04, 434,978.13 and 179,237.01 is: 247,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,203.04 : 434,978.13 = 179,237.01 : x
  2. Step 2: Convert to fraction form
    315,203.04/434,978.13 = 179,237.01/x
  3. Step 3: Cross multiply
    315,203.04x = 434,978.13 × 179,237.01
  4. Step 4: Simplify right side
    315,203.04x = 77,964,179,436.59
  5. Step 5: Solve for x
    x = 77,964,179,436.59/315,203.04
  6. Step 6: Final answer
    x = 247,345.90

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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.