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Finding the Fourth Proportional to 356,274, 534,644.28 and 134,658

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Solution

The fourth proportional to 356,274, 534,644.28 and 134,658 is: 202,075.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,274 : 534,644.28 = 134,658 : x
  2. Step 2: Convert to fraction form
    356,274/534,644.28 = 134,658/x
  3. Step 3: Cross multiply
    356,274x = 534,644.28 × 134,658
  4. Step 4: Simplify right side
    356,274x = 71,994,129,456.24
  5. Step 5: Solve for x
    x = 71,994,129,456.24/356,274
  6. Step 6: Final answer
    x = 202,075.17

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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.