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Finding the Fourth Proportional to 183,778.58, 253,613.48 and 103,209.50

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Solution

The fourth proportional to 183,778.58, 253,613.48 and 103,209.50 is: 142,428.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,778.58 : 253,613.48 = 103,209.50 : x
  2. Step 2: Convert to fraction form
    183,778.58/253,613.48 = 103,209.50/x
  3. Step 3: Cross multiply
    183,778.58x = 253,613.48 × 103,209.50
  4. Step 4: Simplify right side
    183,778.58x = 26,175,320,464.06
  5. Step 5: Solve for x
    x = 26,175,320,464.06/183,778.58
  6. Step 6: Final answer
    x = 142,428.57

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1.5x scale

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.