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Finding the Fourth Proportional to 357,727.86, 536,616.63 and 120,990.51

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Solution

The fourth proportional to 357,727.86, 536,616.63 and 120,990.51 is: 181,494.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,727.86 : 536,616.63 = 120,990.51 : x
  2. Step 2: Convert to fraction form
    357,727.86/536,616.63 = 120,990.51/x
  3. Step 3: Cross multiply
    357,727.86x = 536,616.63 × 120,990.51
  4. Step 4: Simplify right side
    357,727.86x = 64,925,519,738.18
  5. Step 5: Solve for x
    x = 64,925,519,738.18/357,727.86
  6. Step 6: Final answer
    x = 181,494.17

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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.