Home / 330,805.12-456,342.75-216,150.79

Finding the Fourth Proportional to 330,805.12, 456,342.75 and 216,150.79

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Solution

The fourth proportional to 330,805.12, 456,342.75 and 216,150.79 is: 298,178.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,805.12 : 456,342.75 = 216,150.79 : x
  2. Step 2: Convert to fraction form
    330,805.12/456,342.75 = 216,150.79/x
  3. Step 3: Cross multiply
    330,805.12x = 456,342.75 × 216,150.79
  4. Step 4: Simplify right side
    330,805.12x = 98,638,842,560.80
  5. Step 5: Solve for x
    x = 98,638,842,560.80/330,805.12
  6. Step 6: Final answer
    x = 298,178.11

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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.