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Finding the Fourth Proportional to 346,080.80, 517,969.20 and 251,040.80

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Solution

The fourth proportional to 346,080.80, 517,969.20 and 251,040.80 is: 375,725.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,080.80 : 517,969.20 = 251,040.80 : x
  2. Step 2: Convert to fraction form
    346,080.80/517,969.20 = 251,040.80/x
  3. Step 3: Cross multiply
    346,080.80x = 517,969.20 × 251,040.80
  4. Step 4: Simplify right side
    346,080.80x = 130,031,402,343.36
  5. Step 5: Solve for x
    x = 130,031,402,343.36/346,080.80
  6. Step 6: Final answer
    x = 375,725.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.