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Finding the Fourth Proportional to 315,019.67, 434,711.36 and 179,035.65

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Solution

The fourth proportional to 315,019.67, 434,711.36 and 179,035.65 is: 247,060.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,019.67 : 434,711.36 = 179,035.65 : x
  2. Step 2: Convert to fraction form
    315,019.67/434,711.36 = 179,035.65/x
  3. Step 3: Cross multiply
    315,019.67x = 434,711.36 × 179,035.65
  4. Step 4: Simplify right side
    315,019.67x = 77,828,831,347.57
  5. Step 5: Solve for x
    x = 77,828,831,347.57/315,019.67
  6. Step 6: Final answer
    x = 247,060.23

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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.