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Finding the Fourth Proportional to 330,807.72, 456,504.90 and 187,580.84

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Solution

The fourth proportional to 330,807.72, 456,504.90 and 187,580.84 is: 258,856.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,807.72 : 456,504.90 = 187,580.84 : x
  2. Step 2: Convert to fraction form
    330,807.72/456,504.90 = 187,580.84/x
  3. Step 3: Cross multiply
    330,807.72x = 456,504.90 × 187,580.84
  4. Step 4: Simplify right side
    330,807.72x = 85,631,572,606.12
  5. Step 5: Solve for x
    x = 85,631,572,606.12/330,807.72
  6. Step 6: Final answer
    x = 258,856.03

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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.