Home / 377,890.88-521,513-208,124.96

Finding the Fourth Proportional to 377,890.88, 521,513 and 208,124.96

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Solution

The fourth proportional to 377,890.88, 521,513 and 208,124.96 is: 287,225.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,890.88 : 521,513 = 208,124.96 : x
  2. Step 2: Convert to fraction form
    377,890.88/521,513 = 208,124.96/x
  3. Step 3: Cross multiply
    377,890.88x = 521,513 × 208,124.96
  4. Step 4: Simplify right side
    377,890.88x = 108,539,872,264.48
  5. Step 5: Solve for x
    x = 108,539,872,264.48/377,890.88
  6. Step 6: Final answer
    x = 287,225.43

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1.5x scale

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.