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Finding the Fourth Proportional to 377,219.58, 520,572.87 and 207,458.16

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Solution

The fourth proportional to 377,219.58, 520,572.87 and 207,458.16 is: 286,297.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,219.58 : 520,572.87 = 207,458.16 : x
  2. Step 2: Convert to fraction form
    377,219.58/520,572.87 = 207,458.16/x
  3. Step 3: Cross multiply
    377,219.58x = 520,572.87 × 207,458.16
  4. Step 4: Simplify right side
    377,219.58x = 107,997,089,756.12
  5. Step 5: Solve for x
    x = 107,997,089,756.12/377,219.58
  6. Step 6: Final answer
    x = 286,297.68

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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.