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Finding the Fourth Proportional to 203,543.70, 280,885.41 and 118,655.25

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Solution

The fourth proportional to 203,543.70, 280,885.41 and 118,655.25 is: 163,741.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,543.70 : 280,885.41 = 118,655.25 : x
  2. Step 2: Convert to fraction form
    203,543.70/280,885.41 = 118,655.25/x
  3. Step 3: Cross multiply
    203,543.70x = 280,885.41 × 118,655.25
  4. Step 4: Simplify right side
    203,543.70x = 33,328,528,544.90
  5. Step 5: Solve for x
    x = 33,328,528,544.90/203,543.70
  6. Step 6: Final answer
    x = 163,741.39

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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.