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Finding the Fourth Proportional to 377,685.84, 521,295.12 and 216,537.96

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Solution

The fourth proportional to 377,685.84, 521,295.12 and 216,537.96 is: 298,873.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,685.84 : 521,295.12 = 216,537.96 : x
  2. Step 2: Convert to fraction form
    377,685.84/521,295.12 = 216,537.96/x
  3. Step 3: Cross multiply
    377,685.84x = 521,295.12 × 216,537.96
  4. Step 4: Simplify right side
    377,685.84x = 112,880,181,842.76
  5. Step 5: Solve for x
    x = 112,880,181,842.76/377,685.84
  6. Step 6: Final answer
    x = 298,873.22

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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.