Home / 253,526.70-380,265.27-66,538.20

Finding the Fourth Proportional to 253,526.70, 380,265.27 and 66,538.20

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Solution

The fourth proportional to 253,526.70, 380,265.27 and 66,538.20 is: 99,800.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,526.70 : 380,265.27 = 66,538.20 : x
  2. Step 2: Convert to fraction form
    253,526.70/380,265.27 = 66,538.20/x
  3. Step 3: Cross multiply
    253,526.70x = 380,265.27 × 66,538.20
  4. Step 4: Simplify right side
    253,526.70x = 25,302,166,588.31
  5. Step 5: Solve for x
    x = 25,302,166,588.31/253,526.70
  6. Step 6: Final answer
    x = 99,800.80

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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.