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Finding the Fourth Proportional to 342,855.77, 514,317.47 and 118,186.63

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Solution

The fourth proportional to 342,855.77, 514,317.47 and 118,186.63 is: 177,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,855.77 : 514,317.47 = 118,186.63 : x
  2. Step 2: Convert to fraction form
    342,855.77/514,317.47 = 118,186.63/x
  3. Step 3: Cross multiply
    342,855.77x = 514,317.47 × 118,186.63
  4. Step 4: Simplify right side
    342,855.77x = 60,785,448,529.43
  5. Step 5: Solve for x
    x = 60,785,448,529.43/342,855.77
  6. Step 6: Final answer
    x = 177,291.60

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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.