Home / 278,050.36-417,133.86-120,301.24

Finding the Fourth Proportional to 278,050.36, 417,133.86 and 120,301.24

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Solution

The fourth proportional to 278,050.36, 417,133.86 and 120,301.24 is: 180,477.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,050.36 : 417,133.86 = 120,301.24 : x
  2. Step 2: Convert to fraction form
    278,050.36/417,133.86 = 120,301.24/x
  3. Step 3: Cross multiply
    278,050.36x = 417,133.86 × 120,301.24
  4. Step 4: Simplify right side
    278,050.36x = 50,181,720,603.99
  5. Step 5: Solve for x
    x = 50,181,720,603.99/278,050.36
  6. Step 6: Final answer
    x = 180,477.09

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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.