Home / 278,437.63-417,562.85-100,907.47

Finding the Fourth Proportional to 278,437.63, 417,562.85 and 100,907.47

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Solution

The fourth proportional to 278,437.63, 417,562.85 and 100,907.47 is: 151,327.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,437.63 : 417,562.85 = 100,907.47 : x
  2. Step 2: Convert to fraction form
    278,437.63/417,562.85 = 100,907.47/x
  3. Step 3: Cross multiply
    278,437.63x = 417,562.85 × 100,907.47
  4. Step 4: Simplify right side
    278,437.63x = 42,135,210,254.95
  5. Step 5: Solve for x
    x = 42,135,210,254.95/278,437.63
  6. Step 6: Final answer
    x = 151,327.28

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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.