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Finding the Fourth Proportional to 303,555.15, 455,332.73 and 146,091.15

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Solution

The fourth proportional to 303,555.15, 455,332.73 and 146,091.15 is: 219,136.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,555.15 : 455,332.73 = 146,091.15 : x
  2. Step 2: Convert to fraction form
    303,555.15/455,332.73 = 146,091.15/x
  3. Step 3: Cross multiply
    303,555.15x = 455,332.73 × 146,091.15
  4. Step 4: Simplify right side
    303,555.15x = 66,520,081,427.88
  5. Step 5: Solve for x
    x = 66,520,081,427.88/303,555.15
  6. Step 6: Final answer
    x = 219,136.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.