Home / 330,631.04-456,320.72-201,644.36

Finding the Fourth Proportional to 330,631.04, 456,320.72 and 201,644.36

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Solution

The fourth proportional to 330,631.04, 456,320.72 and 201,644.36 is: 278,299.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,631.04 : 456,320.72 = 201,644.36 : x
  2. Step 2: Convert to fraction form
    330,631.04/456,320.72 = 201,644.36/x
  3. Step 3: Cross multiply
    330,631.04x = 456,320.72 × 201,644.36
  4. Step 4: Simplify right side
    330,631.04x = 92,014,499,539.14
  5. Step 5: Solve for x
    x = 92,014,499,539.14/330,631.04
  6. Step 6: Final answer
    x = 278,299.64

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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.