Home / 377,921.23-521,531.27-208,155.35

Finding the Fourth Proportional to 377,921.23, 521,531.27 and 208,155.35

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Solution

The fourth proportional to 377,921.23, 521,531.27 and 208,155.35 is: 287,254.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,921.23 : 521,531.27 = 208,155.35 : x
  2. Step 2: Convert to fraction form
    377,921.23/521,531.27 = 208,155.35/x
  3. Step 3: Cross multiply
    377,921.23x = 521,531.27 × 208,155.35
  4. Step 4: Simplify right side
    377,921.23x = 108,559,526,257.30
  5. Step 5: Solve for x
    x = 108,559,526,257.30/377,921.23
  6. Step 6: Final answer
    x = 287,254.38

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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.