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Finding the Fourth Proportional to 200,032.40, 300,005.40 and 87,712.40

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Solution

The fourth proportional to 200,032.40, 300,005.40 and 87,712.40 is: 131,549.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,032.40 : 300,005.40 = 87,712.40 : x
  2. Step 2: Convert to fraction form
    200,032.40/300,005.40 = 87,712.40/x
  3. Step 3: Cross multiply
    200,032.40x = 300,005.40 × 87,712.40
  4. Step 4: Simplify right side
    200,032.40x = 26,314,193,646.96
  5. Step 5: Solve for x
    x = 26,314,193,646.96/200,032.40
  6. Step 6: Final answer
    x = 131,549.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.