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Finding the Fourth Proportional to 200,719.80, 301,079.70 and 134,191.80

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Solution

The fourth proportional to 200,719.80, 301,079.70 and 134,191.80 is: 201,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,719.80 : 301,079.70 = 134,191.80 : x
  2. Step 2: Convert to fraction form
    200,719.80/301,079.70 = 134,191.80/x
  3. Step 3: Cross multiply
    200,719.80x = 301,079.70 × 134,191.80
  4. Step 4: Simplify right side
    200,719.80x = 40,402,426,886.46
  5. Step 5: Solve for x
    x = 40,402,426,886.46/200,719.80
  6. Step 6: Final answer
    x = 201,287.70

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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.