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Finding the Fourth Proportional to 297,096.56, 445,597.08 and 86,685.20

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Solution

The fourth proportional to 297,096.56, 445,597.08 and 86,685.20 is: 130,013.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,096.56 : 445,597.08 = 86,685.20 : x
  2. Step 2: Convert to fraction form
    297,096.56/445,597.08 = 86,685.20/x
  3. Step 3: Cross multiply
    297,096.56x = 445,597.08 × 86,685.20
  4. Step 4: Simplify right side
    297,096.56x = 38,626,671,999.22
  5. Step 5: Solve for x
    x = 38,626,671,999.22/297,096.56
  6. Step 6: Final answer
    x = 130,013.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.