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Finding the Fourth Proportional to 203,487.46, 280,830.45 and 118,602.70

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Solution

The fourth proportional to 203,487.46, 280,830.45 and 118,602.70 is: 163,682.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,487.46 : 280,830.45 = 118,602.70 : x
  2. Step 2: Convert to fraction form
    203,487.46/280,830.45 = 118,602.70/x
  3. Step 3: Cross multiply
    203,487.46x = 280,830.45 × 118,602.70
  4. Step 4: Simplify right side
    203,487.46x = 33,307,249,612.22
  5. Step 5: Solve for x
    x = 33,307,249,612.22/203,487.46
  6. Step 6: Final answer
    x = 163,682.07

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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.