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Finding the Fourth Proportional to 328,765.66, 493,143.12 and 104,125.76

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Solution

The fourth proportional to 328,765.66, 493,143.12 and 104,125.76 is: 156,186.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,765.66 : 493,143.12 = 104,125.76 : x
  2. Step 2: Convert to fraction form
    328,765.66/493,143.12 = 104,125.76/x
  3. Step 3: Cross multiply
    328,765.66x = 493,143.12 × 104,125.76
  4. Step 4: Simplify right side
    328,765.66x = 51,348,902,158.77
  5. Step 5: Solve for x
    x = 51,348,902,158.77/328,765.66
  6. Step 6: Final answer
    x = 156,186.94

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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.