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Finding the Fourth Proportional to 377,518.95, 520,987.10 and 205,448.01

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Solution

The fourth proportional to 377,518.95, 520,987.10 and 205,448.01 is: 283,524.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,518.95 : 520,987.10 = 205,448.01 : x
  2. Step 2: Convert to fraction form
    377,518.95/520,987.10 = 205,448.01/x
  3. Step 3: Cross multiply
    377,518.95x = 520,987.10 × 205,448.01
  4. Step 4: Simplify right side
    377,518.95x = 107,035,765,397.99
  5. Step 5: Solve for x
    x = 107,035,765,397.99/377,518.95
  6. Step 6: Final answer
    x = 283,524.22

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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.