Home / 278,454.90-384,265.44-151,130.46

Finding the Fourth Proportional to 278,454.90, 384,265.44 and 151,130.46

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Solution

The fourth proportional to 278,454.90, 384,265.44 and 151,130.46 is: 208,558.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,454.90 : 384,265.44 = 151,130.46 : x
  2. Step 2: Convert to fraction form
    278,454.90/384,265.44 = 151,130.46/x
  3. Step 3: Cross multiply
    278,454.90x = 384,265.44 × 151,130.46
  4. Step 4: Simplify right side
    278,454.90x = 58,074,212,709.30
  5. Step 5: Solve for x
    x = 58,074,212,709.30/278,454.90
  6. Step 6: Final answer
    x = 208,558.77

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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.