Home / 278,975.70-384,981.93-151,654.50

Finding the Fourth Proportional to 278,975.70, 384,981.93 and 151,654.50

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Solution

The fourth proportional to 278,975.70, 384,981.93 and 151,654.50 is: 209,280.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,975.70 : 384,981.93 = 151,654.50 : x
  2. Step 2: Convert to fraction form
    278,975.70/384,981.93 = 151,654.50/x
  3. Step 3: Cross multiply
    278,975.70x = 384,981.93 × 151,654.50
  4. Step 4: Simplify right side
    278,975.70x = 58,384,242,103.19
  5. Step 5: Solve for x
    x = 58,384,242,103.19/278,975.70
  6. Step 6: Final answer
    x = 209,280.74

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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.