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Finding the Fourth Proportional to 201,045.40, 301,130.70 and 161,679.40

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Solution

The fourth proportional to 201,045.40, 301,130.70 and 161,679.40 is: 242,167.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,045.40 : 301,130.70 = 161,679.40 : x
  2. Step 2: Convert to fraction form
    201,045.40/301,130.70 = 161,679.40/x
  3. Step 3: Cross multiply
    201,045.40x = 301,130.70 × 161,679.40
  4. Step 4: Simplify right side
    201,045.40x = 48,686,630,897.58
  5. Step 5: Solve for x
    x = 48,686,630,897.58/201,045.40
  6. Step 6: Final answer
    x = 242,167.35

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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.