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Finding the Fourth Proportional to 346,575.68, 519,138.31 and 278,741.09

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Solution

The fourth proportional to 346,575.68, 519,138.31 and 278,741.09 is: 417,528.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,575.68 : 519,138.31 = 278,741.09 : x
  2. Step 2: Convert to fraction form
    346,575.68/519,138.31 = 278,741.09/x
  3. Step 3: Cross multiply
    346,575.68x = 519,138.31 × 278,741.09
  4. Step 4: Simplify right side
    346,575.68x = 144,705,174,400.76
  5. Step 5: Solve for x
    x = 144,705,174,400.76/346,575.68
  6. Step 6: Final answer
    x = 417,528.36

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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.