Home / 278,477.10-384,288.09-151,149.96

Finding the Fourth Proportional to 278,477.10, 384,288.09 and 151,149.96

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Solution

The fourth proportional to 278,477.10, 384,288.09 and 151,149.96 is: 208,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,477.10 : 384,288.09 = 151,149.96 : x
  2. Step 2: Convert to fraction form
    278,477.10/384,288.09 = 151,149.96/x
  3. Step 3: Cross multiply
    278,477.10x = 384,288.09 × 151,149.96
  4. Step 4: Simplify right side
    278,477.10x = 58,085,129,431.98
  5. Step 5: Solve for x
    x = 58,085,129,431.98/278,477.10
  6. Step 6: Final answer
    x = 208,581.35

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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.