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Finding the Fourth Proportional to 354,335.55, 488,985.27 and 193,193.28

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Solution

The fourth proportional to 354,335.55, 488,985.27 and 193,193.28 is: 266,607.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,335.55 : 488,985.27 = 193,193.28 : x
  2. Step 2: Convert to fraction form
    354,335.55/488,985.27 = 193,193.28/x
  3. Step 3: Cross multiply
    354,335.55x = 488,985.27 × 193,193.28
  4. Step 4: Simplify right side
    354,335.55x = 94,468,668,182.99
  5. Step 5: Solve for x
    x = 94,468,668,182.99/354,335.55
  6. Step 6: Final answer
    x = 266,607.93

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Why These Related Problems?

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