Home / 278,769.60-384,701.40-151,444.08

Finding the Fourth Proportional to 278,769.60, 384,701.40 and 151,444.08

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Solution

The fourth proportional to 278,769.60, 384,701.40 and 151,444.08 is: 208,992.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,769.60 : 384,701.40 = 151,444.08 : x
  2. Step 2: Convert to fraction form
    278,769.60/384,701.40 = 151,444.08/x
  3. Step 3: Cross multiply
    278,769.60x = 384,701.40 × 151,444.08
  4. Step 4: Simplify right side
    278,769.60x = 58,260,749,597.71
  5. Step 5: Solve for x
    x = 58,260,749,597.71/278,769.60
  6. Step 6: Final answer
    x = 208,992.48

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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.