Home / 330,631.33-455,848.89-214,139.02

Finding the Fourth Proportional to 330,631.33, 455,848.89 and 214,139.02

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Solution

The fourth proportional to 330,631.33, 455,848.89 and 214,139.02 is: 295,238.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,631.33 : 455,848.89 = 214,139.02 : x
  2. Step 2: Convert to fraction form
    330,631.33/455,848.89 = 214,139.02/x
  3. Step 3: Cross multiply
    330,631.33x = 455,848.89 × 214,139.02
  4. Step 4: Simplify right side
    330,631.33x = 97,615,034,572.69
  5. Step 5: Solve for x
    x = 97,615,034,572.69/330,631.33
  6. Step 6: Final answer
    x = 295,238.31

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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.