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Finding the Fourth Proportional to 200,030.60, 299,700.30 and 129,873.80

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Solution

The fourth proportional to 200,030.60, 299,700.30 and 129,873.80 is: 194,586.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,030.60 : 299,700.30 = 129,873.80 : x
  2. Step 2: Convert to fraction form
    200,030.60/299,700.30 = 129,873.80/x
  3. Step 3: Cross multiply
    200,030.60x = 299,700.30 × 129,873.80
  4. Step 4: Simplify right side
    200,030.60x = 38,923,216,822.14
  5. Step 5: Solve for x
    x = 38,923,216,822.14/200,030.60
  6. Step 6: Final answer
    x = 194,586.31

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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.