Home / 377,403.16-520,804.49-205,316.72

Finding the Fourth Proportional to 377,403.16, 520,804.49 and 205,316.72

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Solution

The fourth proportional to 377,403.16, 520,804.49 and 205,316.72 is: 283,330.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,403.16 : 520,804.49 = 205,316.72 : x
  2. Step 2: Convert to fraction form
    377,403.16/520,804.49 = 205,316.72/x
  3. Step 3: Cross multiply
    377,403.16x = 520,804.49 × 205,316.72
  4. Step 4: Simplify right side
    377,403.16x = 106,929,869,648.07
  5. Step 5: Solve for x
    x = 106,929,869,648.07/377,403.16
  6. Step 6: Final answer
    x = 283,330.62

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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.