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Finding the Fourth Proportional to 315,165.74, 434,911.07 and 179,180.51

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Solution

The fourth proportional to 315,165.74, 434,911.07 and 179,180.51 is: 247,259.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,165.74 : 434,911.07 = 179,180.51 : x
  2. Step 2: Convert to fraction form
    315,165.74/434,911.07 = 179,180.51/x
  3. Step 3: Cross multiply
    315,165.74x = 434,911.07 × 179,180.51
  4. Step 4: Simplify right side
    315,165.74x = 77,927,585,600.64
  5. Step 5: Solve for x
    x = 77,927,585,600.64/315,165.74
  6. Step 6: Final answer
    x = 247,259.07

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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.