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Finding the Fourth Proportional to 357,483.68, 493,330.40 and 196,340.66

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Solution

The fourth proportional to 357,483.68, 493,330.40 and 196,340.66 is: 270,951.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,483.68 : 493,330.40 = 196,340.66 : x
  2. Step 2: Convert to fraction form
    357,483.68/493,330.40 = 196,340.66/x
  3. Step 3: Cross multiply
    357,483.68x = 493,330.40 × 196,340.66
  4. Step 4: Simplify right side
    357,483.68x = 96,860,812,885.71
  5. Step 5: Solve for x
    x = 96,860,812,885.71/357,483.68
  6. Step 6: Final answer
    x = 270,951.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.