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Finding the Fourth Proportional to 355,655.60, 533,483.40 and 326,625.20

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Solution

The fourth proportional to 355,655.60, 533,483.40 and 326,625.20 is: 489,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,655.60 : 533,483.40 = 326,625.20 : x
  2. Step 2: Convert to fraction form
    355,655.60/533,483.40 = 326,625.20/x
  3. Step 3: Cross multiply
    355,655.60x = 533,483.40 × 326,625.20
  4. Step 4: Simplify right side
    355,655.60x = 174,249,122,221.68
  5. Step 5: Solve for x
    x = 174,249,122,221.68/355,655.60
  6. Step 6: Final answer
    x = 489,937.80

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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.