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Finding the Fourth Proportional to 201,047.40, 301,133.70 and 161,681.40

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Solution

The fourth proportional to 201,047.40, 301,133.70 and 161,681.40 is: 242,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,047.40 : 301,133.70 = 161,681.40 : x
  2. Step 2: Convert to fraction form
    201,047.40/301,133.70 = 161,681.40/x
  3. Step 3: Cross multiply
    201,047.40x = 301,133.70 × 161,681.40
  4. Step 4: Simplify right side
    201,047.40x = 48,687,718,203.18
  5. Step 5: Solve for x
    x = 48,687,718,203.18/201,047.40
  6. Step 6: Final answer
    x = 242,170.34

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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.