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Finding the Fourth Proportional to 503,480.10, 754,564.05 and 203,715.30

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Solution

The fourth proportional to 503,480.10, 754,564.05 and 203,715.30 is: 305,307.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,480.10 : 754,564.05 = 203,715.30 : x
  2. Step 2: Convert to fraction form
    503,480.10/754,564.05 = 203,715.30/x
  3. Step 3: Cross multiply
    503,480.10x = 754,564.05 × 203,715.30
  4. Step 4: Simplify right side
    503,480.10x = 153,716,241,814.97
  5. Step 5: Solve for x
    x = 153,716,241,814.97/503,480.10
  6. Step 6: Final answer
    x = 305,307.48

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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.