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Finding the Fourth Proportional to 354,038.18, 488,578.28 and 192,893.15

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Solution

The fourth proportional to 354,038.18, 488,578.28 and 192,893.15 is: 266,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,038.18 : 488,578.28 = 192,893.15 : x
  2. Step 2: Convert to fraction form
    354,038.18/488,578.28 = 192,893.15/x
  3. Step 3: Cross multiply
    354,038.18x = 488,578.28 × 192,893.15
  4. Step 4: Simplify right side
    354,038.18x = 94,243,403,707.76
  5. Step 5: Solve for x
    x = 94,243,403,707.76/354,038.18
  6. Step 6: Final answer
    x = 266,195.60

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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.