Home / 278,821.98-384,769.44-151,498.08

Finding the Fourth Proportional to 278,821.98, 384,769.44 and 151,498.08

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Solution

The fourth proportional to 278,821.98, 384,769.44 and 151,498.08 is: 209,064.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,821.98 : 384,769.44 = 151,498.08 : x
  2. Step 2: Convert to fraction form
    278,821.98/384,769.44 = 151,498.08/x
  3. Step 3: Cross multiply
    278,821.98x = 384,769.44 × 151,498.08
  4. Step 4: Simplify right side
    278,821.98x = 58,291,831,402.68
  5. Step 5: Solve for x
    x = 58,291,831,402.68/278,821.98
  6. Step 6: Final answer
    x = 209,064.69

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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.