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Finding the Fourth Proportional to 355,715.60, 532,277.40 and 262,403.60

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Solution

The fourth proportional to 355,715.60, 532,277.40 and 262,403.60 is: 392,649.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,715.60 : 532,277.40 = 262,403.60 : x
  2. Step 2: Convert to fraction form
    355,715.60/532,277.40 = 262,403.60/x
  3. Step 3: Cross multiply
    355,715.60x = 532,277.40 × 262,403.60
  4. Step 4: Simplify right side
    355,715.60x = 139,671,505,958.64
  5. Step 5: Solve for x
    x = 139,671,505,958.64/355,715.60
  6. Step 6: Final answer
    x = 392,649.37

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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.