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Finding the Fourth Proportional to 330,485.69, 456,069.06 and 187,273.10

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Solution

The fourth proportional to 330,485.69, 456,069.06 and 187,273.10 is: 258,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,485.69 : 456,069.06 = 187,273.10 : x
  2. Step 2: Convert to fraction form
    330,485.69/456,069.06 = 187,273.10/x
  3. Step 3: Cross multiply
    330,485.69x = 456,069.06 × 187,273.10
  4. Step 4: Simplify right side
    330,485.69x = 85,409,466,680.29
  5. Step 5: Solve for x
    x = 85,409,466,680.29/330,485.69
  6. Step 6: Final answer
    x = 258,436.20

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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.