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Finding the Fourth Proportional to 254,355.66, 351,012.18 and 158,917.71

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Solution

The fourth proportional to 254,355.66, 351,012.18 and 158,917.71 is: 219,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,355.66 : 351,012.18 = 158,917.71 : x
  2. Step 2: Convert to fraction form
    254,355.66/351,012.18 = 158,917.71/x
  3. Step 3: Cross multiply
    254,355.66x = 351,012.18 × 158,917.71
  4. Step 4: Simplify right side
    254,355.66x = 55,782,051,827.71
  5. Step 5: Solve for x
    x = 55,782,051,827.71/254,355.66
  6. Step 6: Final answer
    x = 219,307.30

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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.