Home / 330,281.72-455,977.70-217,432.52

Finding the Fourth Proportional to 330,281.72, 455,977.70 and 217,432.52

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Solution

The fourth proportional to 330,281.72, 455,977.70 and 217,432.52 is: 300,181.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,281.72 : 455,977.70 = 217,432.52 : x
  2. Step 2: Convert to fraction form
    330,281.72/455,977.70 = 217,432.52/x
  3. Step 3: Cross multiply
    330,281.72x = 455,977.70 × 217,432.52
  4. Step 4: Simplify right side
    330,281.72x = 99,144,380,374.80
  5. Step 5: Solve for x
    x = 99,144,380,374.80/330,281.72
  6. Step 6: Final answer
    x = 300,181.25

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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.