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Finding the Fourth Proportional to 322,475.04, 445,069.08 and 186,485.76

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Solution

The fourth proportional to 322,475.04, 445,069.08 and 186,485.76 is: 257,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,475.04 : 445,069.08 = 186,485.76 : x
  2. Step 2: Convert to fraction form
    322,475.04/445,069.08 = 186,485.76/x
  3. Step 3: Cross multiply
    322,475.04x = 445,069.08 × 186,485.76
  4. Step 4: Simplify right side
    322,475.04x = 82,999,045,636.30
  5. Step 5: Solve for x
    x = 82,999,045,636.30/322,475.04
  6. Step 6: Final answer
    x = 257,381.30

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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.