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Finding the Fourth Proportional to 377,634.86, 521,075.13 and 216,460.25

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Solution

The fourth proportional to 377,634.86, 521,075.13 and 216,460.25 is: 298,680.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,634.86 : 521,075.13 = 216,460.25 : x
  2. Step 2: Convert to fraction form
    377,634.86/521,075.13 = 216,460.25/x
  3. Step 3: Cross multiply
    377,634.86x = 521,075.13 × 216,460.25
  4. Step 4: Simplify right side
    377,634.86x = 112,792,052,908.58
  5. Step 5: Solve for x
    x = 112,792,052,908.58/377,634.86
  6. Step 6: Final answer
    x = 298,680.19

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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.