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Finding the Fourth Proportional to 315,191.44, 434,946.47 and 179,258.46

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Solution

The fourth proportional to 315,191.44, 434,946.47 and 179,258.46 is: 247,366.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,191.44 : 434,946.47 = 179,258.46 : x
  2. Step 2: Convert to fraction form
    315,191.44/434,946.47 = 179,258.46/x
  3. Step 3: Cross multiply
    315,191.44x = 434,946.47 × 179,258.46
  4. Step 4: Simplify right side
    315,191.44x = 77,967,834,394.64
  5. Step 5: Solve for x
    x = 77,967,834,394.64/315,191.44
  6. Step 6: Final answer
    x = 247,366.60

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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.