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Finding the Fourth Proportional to 247,852.71, 342,035.54 and 140,422.51

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Solution

The fourth proportional to 247,852.71, 342,035.54 and 140,422.51 is: 193,782.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,852.71 : 342,035.54 = 140,422.51 : x
  2. Step 2: Convert to fraction form
    247,852.71/342,035.54 = 140,422.51/x
  3. Step 3: Cross multiply
    247,852.71x = 342,035.54 × 140,422.51
  4. Step 4: Simplify right side
    247,852.71x = 48,029,489,036.01
  5. Step 5: Solve for x
    x = 48,029,489,036.01/247,852.71
  6. Step 6: Final answer
    x = 193,782.38

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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.