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Finding the Fourth Proportional to 304,222.80, 455,890.44 and 171,140.40

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Solution

The fourth proportional to 304,222.80, 455,890.44 and 171,140.40 is: 256,460.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,222.80 : 455,890.44 = 171,140.40 : x
  2. Step 2: Convert to fraction form
    304,222.80/455,890.44 = 171,140.40/x
  3. Step 3: Cross multiply
    304,222.80x = 455,890.44 × 171,140.40
  4. Step 4: Simplify right side
    304,222.80x = 78,021,272,257.78
  5. Step 5: Solve for x
    x = 78,021,272,257.78/304,222.80
  6. Step 6: Final answer
    x = 256,460.96

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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.