Home / 278,041.21-417,094.25-100,631.77

Finding the Fourth Proportional to 278,041.21, 417,094.25 and 100,631.77

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Solution

The fourth proportional to 278,041.21, 417,094.25 and 100,631.77 is: 150,959.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,041.21 : 417,094.25 = 100,631.77 : x
  2. Step 2: Convert to fraction form
    278,041.21/417,094.25 = 100,631.77/x
  3. Step 3: Cross multiply
    278,041.21x = 417,094.25 × 100,631.77
  4. Step 4: Simplify right side
    278,041.21x = 41,972,931,088.43
  5. Step 5: Solve for x
    x = 41,972,931,088.43/278,041.21
  6. Step 6: Final answer
    x = 150,959.39

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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.