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Finding the Fourth Proportional to 354,070.47, 531,262.68 and 185,550.72

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Solution

The fourth proportional to 354,070.47, 531,262.68 and 185,550.72 is: 278,408.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,070.47 : 531,262.68 = 185,550.72 : x
  2. Step 2: Convert to fraction form
    354,070.47/531,262.68 = 185,550.72/x
  3. Step 3: Cross multiply
    354,070.47x = 531,262.68 × 185,550.72
  4. Step 4: Simplify right side
    354,070.47x = 98,576,172,783.13
  5. Step 5: Solve for x
    x = 98,576,172,783.13/354,070.47
  6. Step 6: Final answer
    x = 278,408.34

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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.