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Finding the Fourth Proportional to 377,707.84, 521,325.48 and 216,560

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Solution

The fourth proportional to 377,707.84, 521,325.48 and 216,560 is: 298,903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,707.84 : 521,325.48 = 216,560 : x
  2. Step 2: Convert to fraction form
    377,707.84/521,325.48 = 216,560/x
  3. Step 3: Cross multiply
    377,707.84x = 521,325.48 × 216,560
  4. Step 4: Simplify right side
    377,707.84x = 112,898,245,948.80
  5. Step 5: Solve for x
    x = 112,898,245,948.80/377,707.84
  6. Step 6: Final answer
    x = 298,903.63

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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.