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Finding the Fourth Proportional to 252,969.04, 349,097.16 and 139,790.80

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Solution

The fourth proportional to 252,969.04, 349,097.16 and 139,790.80 is: 192,911.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,969.04 : 349,097.16 = 139,790.80 : x
  2. Step 2: Convert to fraction form
    252,969.04/349,097.16 = 139,790.80/x
  3. Step 3: Cross multiply
    252,969.04x = 349,097.16 × 139,790.80
  4. Step 4: Simplify right side
    252,969.04x = 48,800,571,274.13
  5. Step 5: Solve for x
    x = 48,800,571,274.13/252,969.04
  6. Step 6: Final answer
    x = 192,911.24

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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.