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Finding the Fourth Proportional to 253,072.69, 349,223.67 and 145,625.38

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Solution

The fourth proportional to 253,072.69, 349,223.67 and 145,625.38 is: 200,953.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,072.69 : 349,223.67 = 145,625.38 : x
  2. Step 2: Convert to fraction form
    253,072.69/349,223.67 = 145,625.38/x
  3. Step 3: Cross multiply
    253,072.69x = 349,223.67 × 145,625.38
  4. Step 4: Simplify right side
    253,072.69x = 50,855,829,648.74
  5. Step 5: Solve for x
    x = 50,855,829,648.74/253,072.69
  6. Step 6: Final answer
    x = 200,953.45

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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.