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Finding the Fourth Proportional to 252,991.08, 349,106.76 and 139,813.56

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Solution

The fourth proportional to 252,991.08, 349,106.76 and 139,813.56 is: 192,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,991.08 : 349,106.76 = 139,813.56 : x
  2. Step 2: Convert to fraction form
    252,991.08/349,106.76 = 139,813.56/x
  3. Step 3: Cross multiply
    252,991.08x = 349,106.76 × 139,813.56
  4. Step 4: Simplify right side
    252,991.08x = 48,809,858,935.67
  5. Step 5: Solve for x
    x = 48,809,858,935.67/252,991.08
  6. Step 6: Final answer
    x = 192,931.15

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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.