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Finding the Fourth Proportional to 330,400.65, 455,962.25 and 187,160.66

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Solution

The fourth proportional to 330,400.65, 455,962.25 and 187,160.66 is: 258,287.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,400.65 : 455,962.25 = 187,160.66 : x
  2. Step 2: Convert to fraction form
    330,400.65/455,962.25 = 187,160.66/x
  3. Step 3: Cross multiply
    330,400.65x = 455,962.25 × 187,160.66
  4. Step 4: Simplify right side
    330,400.65x = 85,338,192,429.47
  5. Step 5: Solve for x
    x = 85,338,192,429.47/330,400.65
  6. Step 6: Final answer
    x = 258,287.00

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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.