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Finding the Fourth Proportional to 354,501.52, 489,241.08 and 201,587.60

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Solution

The fourth proportional to 354,501.52, 489,241.08 and 201,587.60 is: 278,207.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,501.52 : 489,241.08 = 201,587.60 : x
  2. Step 2: Convert to fraction form
    354,501.52/489,241.08 = 201,587.60/x
  3. Step 3: Cross multiply
    354,501.52x = 489,241.08 × 201,587.60
  4. Step 4: Simplify right side
    354,501.52x = 98,624,935,138.61
  5. Step 5: Solve for x
    x = 98,624,935,138.61/354,501.52
  6. Step 6: Final answer
    x = 278,207.37

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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.