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Finding the Fourth Proportional to 377,860.16, 521,440.72 and 208,110.08

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Solution

The fourth proportional to 377,860.16, 521,440.72 and 208,110.08 is: 287,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,860.16 : 521,440.72 = 208,110.08 : x
  2. Step 2: Convert to fraction form
    377,860.16/521,440.72 = 208,110.08/x
  3. Step 3: Cross multiply
    377,860.16x = 521,440.72 × 208,110.08
  4. Step 4: Simplify right side
    377,860.16x = 108,517,069,954.46
  5. Step 5: Solve for x
    x = 108,517,069,954.46/377,860.16
  6. Step 6: Final answer
    x = 287,188.44

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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.