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Finding the Fourth Proportional to 315,031.95, 434,744.82 and 179,066.77

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Solution

The fourth proportional to 315,031.95, 434,744.82 and 179,066.77 is: 247,112.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,031.95 : 434,744.82 = 179,066.77 : x
  2. Step 2: Convert to fraction form
    315,031.95/434,744.82 = 179,066.77/x
  3. Step 3: Cross multiply
    315,031.95x = 434,744.82 × 179,066.77
  4. Step 4: Simplify right side
    315,031.95x = 77,848,349,604.77
  5. Step 5: Solve for x
    x = 77,848,349,604.77/315,031.95
  6. Step 6: Final answer
    x = 247,112.55

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1.5x scale

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.