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Finding the Fourth Proportional to 203,316.30, 280,572.30 and 112,671.54

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Solution

The fourth proportional to 203,316.30, 280,572.30 and 112,671.54 is: 155,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,316.30 : 280,572.30 = 112,671.54 : x
  2. Step 2: Convert to fraction form
    203,316.30/280,572.30 = 112,671.54/x
  3. Step 3: Cross multiply
    203,316.30x = 280,572.30 × 112,671.54
  4. Step 4: Simplify right side
    203,316.30x = 31,612,513,122.34
  5. Step 5: Solve for x
    x = 31,612,513,122.34/203,316.30
  6. Step 6: Final answer
    x = 155,484.40

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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.