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Finding the Fourth Proportional to 284,268.89, 426,312.62 and 115,788.89

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Solution

The fourth proportional to 284,268.89, 426,312.62 and 115,788.89 is: 173,646.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,268.89 : 426,312.62 = 115,788.89 : x
  2. Step 2: Convert to fraction form
    284,268.89/426,312.62 = 115,788.89/x
  3. Step 3: Cross multiply
    284,268.89x = 426,312.62 × 115,788.89
  4. Step 4: Simplify right side
    284,268.89x = 49,362,264,483.85
  5. Step 5: Solve for x
    x = 49,362,264,483.85/284,268.89
  6. Step 6: Final answer
    x = 173,646.38

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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.