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Finding the Fourth Proportional to 200,031.40, 300,047.10 and 168,538.60

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Solution

The fourth proportional to 200,031.40, 300,047.10 and 168,538.60 is: 252,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,031.40 : 300,047.10 = 168,538.60 : x
  2. Step 2: Convert to fraction form
    200,031.40/300,047.10 = 168,538.60/x
  3. Step 3: Cross multiply
    200,031.40x = 300,047.10 × 168,538.60
  4. Step 4: Simplify right side
    200,031.40x = 50,569,518,168.06
  5. Step 5: Solve for x
    x = 50,569,518,168.06/200,031.40
  6. Step 6: Final answer
    x = 252,807.90

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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.