Home / 330,108.31-455,560.30-186,865.28

Finding the Fourth Proportional to 330,108.31, 455,560.30 and 186,865.28

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Solution

The fourth proportional to 330,108.31, 455,560.30 and 186,865.28 is: 257,880.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,108.31 : 455,560.30 = 186,865.28 : x
  2. Step 2: Convert to fraction form
    330,108.31/455,560.30 = 186,865.28/x
  3. Step 3: Cross multiply
    330,108.31x = 455,560.30 × 186,865.28
  4. Step 4: Simplify right side
    330,108.31x = 85,128,402,680.52
  5. Step 5: Solve for x
    x = 85,128,402,680.52/330,108.31
  6. Step 6: Final answer
    x = 257,880.22

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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.