Home / 278,631.69-417,943.02-110,153.58

Finding the Fourth Proportional to 278,631.69, 417,943.02 and 110,153.58

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Solution

The fourth proportional to 278,631.69, 417,943.02 and 110,153.58 is: 165,228.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,631.69 : 417,943.02 = 110,153.58 : x
  2. Step 2: Convert to fraction form
    278,631.69/417,943.02 = 110,153.58/x
  3. Step 3: Cross multiply
    278,631.69x = 417,943.02 × 110,153.58
  4. Step 4: Simplify right side
    278,631.69x = 46,037,919,889.01
  5. Step 5: Solve for x
    x = 46,037,919,889.01/278,631.69
  6. Step 6: Final answer
    x = 165,228.59

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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.