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Finding the Fourth Proportional to 356,356.06, 534,617.89 and 103,642.13

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Solution

The fourth proportional to 356,356.06, 534,617.89 and 103,642.13 is: 155,487.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,356.06 : 534,617.89 = 103,642.13 : x
  2. Step 2: Convert to fraction form
    356,356.06/534,617.89 = 103,642.13/x
  3. Step 3: Cross multiply
    356,356.06x = 534,617.89 × 103,642.13
  4. Step 4: Simplify right side
    356,356.06x = 55,408,937,933.15
  5. Step 5: Solve for x
    x = 55,408,937,933.15/356,356.06
  6. Step 6: Final answer
    x = 155,487.57

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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.