Home / 278,832.50-384,790.65-151,508.06

Finding the Fourth Proportional to 278,832.50, 384,790.65 and 151,508.06

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Solution

The fourth proportional to 278,832.50, 384,790.65 and 151,508.06 is: 209,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,832.50 : 384,790.65 = 151,508.06 : x
  2. Step 2: Convert to fraction form
    278,832.50/384,790.65 = 151,508.06/x
  3. Step 3: Cross multiply
    278,832.50x = 384,790.65 × 151,508.06
  4. Step 4: Simplify right side
    278,832.50x = 58,298,884,887.64
  5. Step 5: Solve for x
    x = 58,298,884,887.64/278,832.50
  6. Step 6: Final answer
    x = 209,082.10

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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.