Home / 377,738.64-521,277.48-207,972.72

Finding the Fourth Proportional to 377,738.64, 521,277.48 and 207,972.72

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Solution

The fourth proportional to 377,738.64, 521,277.48 and 207,972.72 is: 287,001.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,738.64 : 521,277.48 = 207,972.72 : x
  2. Step 2: Convert to fraction form
    377,738.64/521,277.48 = 207,972.72/x
  3. Step 3: Cross multiply
    377,738.64x = 521,277.48 × 207,972.72
  4. Step 4: Simplify right side
    377,738.64x = 108,411,495,390.35
  5. Step 5: Solve for x
    x = 108,411,495,390.35/377,738.64
  6. Step 6: Final answer
    x = 287,001.34

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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.