Home / 330,436.16-455,987.04-187,193.28

Finding the Fourth Proportional to 330,436.16, 455,987.04 and 187,193.28

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Solution

The fourth proportional to 330,436.16, 455,987.04 and 187,193.28 is: 258,318.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,436.16 : 455,987.04 = 187,193.28 : x
  2. Step 2: Convert to fraction form
    330,436.16/455,987.04 = 187,193.28/x
  3. Step 3: Cross multiply
    330,436.16x = 455,987.04 × 187,193.28
  4. Step 4: Simplify right side
    330,436.16x = 85,357,709,655.09
  5. Step 5: Solve for x
    x = 85,357,709,655.09/330,436.16
  6. Step 6: Final answer
    x = 258,318.31

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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.