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Finding the Fourth Proportional to 248,011.80, 342,240.98 and 139,110.14

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Solution

The fourth proportional to 248,011.80, 342,240.98 and 139,110.14 is: 191,963.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,011.80 : 342,240.98 = 139,110.14 : x
  2. Step 2: Convert to fraction form
    248,011.80/342,240.98 = 139,110.14/x
  3. Step 3: Cross multiply
    248,011.80x = 342,240.98 × 139,110.14
  4. Step 4: Simplify right side
    248,011.80x = 47,609,190,641.54
  5. Step 5: Solve for x
    x = 47,609,190,641.54/248,011.80
  6. Step 6: Final answer
    x = 191,963.41

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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.