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Finding the Fourth Proportional to 545,054.43, 817,712.51 and 171,077.43

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Solution

The fourth proportional to 545,054.43, 817,712.51 and 171,077.43 is: 256,657.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,054.43 : 817,712.51 = 171,077.43 : x
  2. Step 2: Convert to fraction form
    545,054.43/817,712.51 = 171,077.43/x
  3. Step 3: Cross multiply
    545,054.43x = 817,712.51 × 171,077.43
  4. Step 4: Simplify right side
    545,054.43x = 139,892,153,834.26
  5. Step 5: Solve for x
    x = 139,892,153,834.26/545,054.43
  6. Step 6: Final answer
    x = 256,657.22

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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.