Home / 278,729.96-384,654.50-151,412.84

Finding the Fourth Proportional to 278,729.96, 384,654.50 and 151,412.84

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Solution

The fourth proportional to 278,729.96, 384,654.50 and 151,412.84 is: 208,953.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,729.96 : 384,654.50 = 151,412.84 : x
  2. Step 2: Convert to fraction form
    278,729.96/384,654.50 = 151,412.84/x
  3. Step 3: Cross multiply
    278,729.96x = 384,654.50 × 151,412.84
  4. Step 4: Simplify right side
    278,729.96x = 58,241,630,263.78
  5. Step 5: Solve for x
    x = 58,241,630,263.78/278,729.96
  6. Step 6: Final answer
    x = 208,953.61

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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.