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Finding the Fourth Proportional to 266,250.60, 367,427.70 and 145,389.60

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Solution

The fourth proportional to 266,250.60, 367,427.70 and 145,389.60 is: 200,638.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,250.60 : 367,427.70 = 145,389.60 : x
  2. Step 2: Convert to fraction form
    266,250.60/367,427.70 = 145,389.60/x
  3. Step 3: Cross multiply
    266,250.60x = 367,427.70 × 145,389.60
  4. Step 4: Simplify right side
    266,250.60x = 53,420,166,331.92
  5. Step 5: Solve for x
    x = 53,420,166,331.92/266,250.60
  6. Step 6: Final answer
    x = 200,638.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.