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Finding the Fourth Proportional to 201,090.30, 301,635.45 and 147,946.20

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Solution

The fourth proportional to 201,090.30, 301,635.45 and 147,946.20 is: 221,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,090.30 : 301,635.45 = 147,946.20 : x
  2. Step 2: Convert to fraction form
    201,090.30/301,635.45 = 147,946.20/x
  3. Step 3: Cross multiply
    201,090.30x = 301,635.45 × 147,946.20
  4. Step 4: Simplify right side
    201,090.30x = 44,625,818,612.79
  5. Step 5: Solve for x
    x = 44,625,818,612.79/201,090.30
  6. Step 6: Final answer
    x = 221,919.30

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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.