Home / 278,454.95-384,268.02-151,130.54

Finding the Fourth Proportional to 278,454.95, 384,268.02 and 151,130.54

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Solution

The fourth proportional to 278,454.95, 384,268.02 and 151,130.54 is: 208,560.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,454.95 : 384,268.02 = 151,130.54 : x
  2. Step 2: Convert to fraction form
    278,454.95/384,268.02 = 151,130.54/x
  3. Step 3: Cross multiply
    278,454.95x = 384,268.02 × 151,130.54
  4. Step 4: Simplify right side
    278,454.95x = 58,074,633,761.26
  5. Step 5: Solve for x
    x = 58,074,633,761.26/278,454.95
  6. Step 6: Final answer
    x = 208,560.25

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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.