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Finding the Fourth Proportional to 315,097.40, 434,818.59 and 179,113.52

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Solution

The fourth proportional to 315,097.40, 434,818.59 and 179,113.52 is: 247,167.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,097.40 : 434,818.59 = 179,113.52 : x
  2. Step 2: Convert to fraction form
    315,097.40/434,818.59 = 179,113.52/x
  3. Step 3: Cross multiply
    315,097.40x = 434,818.59 × 179,113.52
  4. Step 4: Simplify right side
    315,097.40x = 77,881,888,216.34
  5. Step 5: Solve for x
    x = 77,881,888,216.34/315,097.40
  6. Step 6: Final answer
    x = 247,167.66

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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.