Home / 278,439.08-384,246.20-151,114.71

Finding the Fourth Proportional to 278,439.08, 384,246.20 and 151,114.71

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Solution

The fourth proportional to 278,439.08, 384,246.20 and 151,114.71 is: 208,538.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,439.08 : 384,246.20 = 151,114.71 : x
  2. Step 2: Convert to fraction form
    278,439.08/384,246.20 = 151,114.71/x
  3. Step 3: Cross multiply
    278,439.08x = 384,246.20 × 151,114.71
  4. Step 4: Simplify right side
    278,439.08x = 58,065,252,326.03
  5. Step 5: Solve for x
    x = 58,065,252,326.03/278,439.08
  6. Step 6: Final answer
    x = 208,538.44

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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.