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Finding the Fourth Proportional to 253,075.30, 349,227.30 and 145,628

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Solution

The fourth proportional to 253,075.30, 349,227.30 and 145,628 is: 200,957.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,075.30 : 349,227.30 = 145,628 : x
  2. Step 2: Convert to fraction form
    253,075.30/349,227.30 = 145,628/x
  3. Step 3: Cross multiply
    253,075.30x = 349,227.30 × 145,628
  4. Step 4: Simplify right side
    253,075.30x = 50,857,273,244.40
  5. Step 5: Solve for x
    x = 50,857,273,244.40/253,075.30
  6. Step 6: Final answer
    x = 200,957.08

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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.