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Finding the Fourth Proportional to 315,641.82, 435,607.95 and 179,675.83

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Solution

The fourth proportional to 315,641.82, 435,607.95 and 179,675.83 is: 247,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,641.82 : 435,607.95 = 179,675.83 : x
  2. Step 2: Convert to fraction form
    315,641.82/435,607.95 = 179,675.83/x
  3. Step 3: Cross multiply
    315,641.82x = 435,607.95 × 179,675.83
  4. Step 4: Simplify right side
    315,641.82x = 78,268,219,970.85
  5. Step 5: Solve for x
    x = 78,268,219,970.85/315,641.82
  6. Step 6: Final answer
    x = 247,965.30

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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.