Home / 330,435.16-455,985.66-187,192.28

Finding the Fourth Proportional to 330,435.16, 455,985.66 and 187,192.28

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Solution

The fourth proportional to 330,435.16, 455,985.66 and 187,192.28 is: 258,316.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,435.16 : 455,985.66 = 187,192.28 : x
  2. Step 2: Convert to fraction form
    330,435.16/455,985.66 = 187,192.28/x
  3. Step 3: Cross multiply
    330,435.16x = 455,985.66 × 187,192.28
  4. Step 4: Simplify right side
    330,435.16x = 85,356,995,342.70
  5. Step 5: Solve for x
    x = 85,356,995,342.70/330,435.16
  6. Step 6: Final answer
    x = 258,316.93

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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.