Home / 278,464.03-384,280.74-151,139.64

Finding the Fourth Proportional to 278,464.03, 384,280.74 and 151,139.64

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Solution

The fourth proportional to 278,464.03, 384,280.74 and 151,139.64 is: 208,572.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,464.03 : 384,280.74 = 151,139.64 : x
  2. Step 2: Convert to fraction form
    278,464.03/384,280.74 = 151,139.64/x
  3. Step 3: Cross multiply
    278,464.03x = 384,280.74 × 151,139.64
  4. Step 4: Simplify right side
    278,464.03x = 58,080,052,702.53
  5. Step 5: Solve for x
    x = 58,080,052,702.53/278,464.03
  6. Step 6: Final answer
    x = 208,572.91

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1.5x scale

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.