Home / 377,985.48-521,621.24-208,219.20

Finding the Fourth Proportional to 377,985.48, 521,621.24 and 208,219.20

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Solution

The fourth proportional to 377,985.48, 521,621.24 and 208,219.20 is: 287,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,985.48 : 521,621.24 = 208,219.20 : x
  2. Step 2: Convert to fraction form
    377,985.48/521,621.24 = 208,219.20/x
  3. Step 3: Cross multiply
    377,985.48x = 521,621.24 × 208,219.20
  4. Step 4: Simplify right side
    377,985.48x = 108,611,557,295.81
  5. Step 5: Solve for x
    x = 108,611,557,295.81/377,985.48
  6. Step 6: Final answer
    x = 287,343.20

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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.