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Finding the Fourth Proportional to 545,254.90, 817,893.29 and 145,895.04

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Solution

The fourth proportional to 545,254.90, 817,893.29 and 145,895.04 is: 218,845.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,254.90 : 817,893.29 = 145,895.04 : x
  2. Step 2: Convert to fraction form
    545,254.90/817,893.29 = 145,895.04/x
  3. Step 3: Cross multiply
    545,254.90x = 817,893.29 × 145,895.04
  4. Step 4: Simplify right side
    545,254.90x = 119,326,574,625.02
  5. Step 5: Solve for x
    x = 119,326,574,625.02/545,254.90
  6. Step 6: Final answer
    x = 218,845.49

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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.