Home / 330,625.08-455,840.20-214,132.72

Finding the Fourth Proportional to 330,625.08, 455,840.20 and 214,132.72

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Solution

The fourth proportional to 330,625.08, 455,840.20 and 214,132.72 is: 295,229.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,625.08 : 455,840.20 = 214,132.72 : x
  2. Step 2: Convert to fraction form
    330,625.08/455,840.20 = 214,132.72/x
  3. Step 3: Cross multiply
    330,625.08x = 455,840.20 × 214,132.72
  4. Step 4: Simplify right side
    330,625.08x = 97,610,301,911.34
  5. Step 5: Solve for x
    x = 97,610,301,911.34/330,625.08
  6. Step 6: Final answer
    x = 295,229.58

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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.