Home / 253,140.30-379,710.45-223,615.80

Finding the Fourth Proportional to 253,140.30, 379,710.45 and 223,615.80

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Solution

The fourth proportional to 253,140.30, 379,710.45 and 223,615.80 is: 335,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,140.30 : 379,710.45 = 223,615.80 : x
  2. Step 2: Convert to fraction form
    253,140.30/379,710.45 = 223,615.80/x
  3. Step 3: Cross multiply
    253,140.30x = 379,710.45 × 223,615.80
  4. Step 4: Simplify right side
    253,140.30x = 84,909,256,045.11
  5. Step 5: Solve for x
    x = 84,909,256,045.11/253,140.30
  6. Step 6: Final answer
    x = 335,423.70

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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.