Home / 278,589.02-384,454.36-151,264.61

Finding the Fourth Proportional to 278,589.02, 384,454.36 and 151,264.61

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Solution

The fourth proportional to 278,589.02, 384,454.36 and 151,264.61 is: 208,745.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,589.02 : 384,454.36 = 151,264.61 : x
  2. Step 2: Convert to fraction form
    278,589.02/384,454.36 = 151,264.61/x
  3. Step 3: Cross multiply
    278,589.02x = 384,454.36 × 151,264.61
  4. Step 4: Simplify right side
    278,589.02x = 58,154,340,911.99
  5. Step 5: Solve for x
    x = 58,154,340,911.99/278,589.02
  6. Step 6: Final answer
    x = 208,745.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.