Home / 278,946.33-384,946.47-151,621.62

Finding the Fourth Proportional to 278,946.33, 384,946.47 and 151,621.62

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Solution

The fourth proportional to 278,946.33, 384,946.47 and 151,621.62 is: 209,238.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,946.33 : 384,946.47 = 151,621.62 : x
  2. Step 2: Convert to fraction form
    278,946.33/384,946.47 = 151,621.62/x
  3. Step 3: Cross multiply
    278,946.33x = 384,946.47 × 151,621.62
  4. Step 4: Simplify right side
    278,946.33x = 58,366,207,394.68
  5. Step 5: Solve for x
    x = 58,366,207,394.68/278,946.33
  6. Step 6: Final answer
    x = 209,238.13

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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.