Home / 377,921.54-521,531.71-208,155.67

Finding the Fourth Proportional to 377,921.54, 521,531.71 and 208,155.67

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Solution

The fourth proportional to 377,921.54, 521,531.71 and 208,155.67 is: 287,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,921.54 : 521,531.71 = 208,155.67 : x
  2. Step 2: Convert to fraction form
    377,921.54/521,531.71 = 208,155.67/x
  3. Step 3: Cross multiply
    377,921.54x = 521,531.71 × 208,155.67
  4. Step 4: Simplify right side
    377,921.54x = 108,559,782,521.30
  5. Step 5: Solve for x
    x = 108,559,782,521.30/377,921.54
  6. Step 6: Final answer
    x = 287,254.82

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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.