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Finding the Fourth Proportional to 377,857.84, 521,426.96 and 216,597.28

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Solution

The fourth proportional to 377,857.84, 521,426.96 and 216,597.28 is: 298,894.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,857.84 : 521,426.96 = 216,597.28 : x
  2. Step 2: Convert to fraction form
    377,857.84/521,426.96 = 216,597.28/x
  3. Step 3: Cross multiply
    377,857.84x = 521,426.96 × 216,597.28
  4. Step 4: Simplify right side
    377,857.84x = 112,939,661,254.67
  5. Step 5: Solve for x
    x = 112,939,661,254.67/377,857.84
  6. Step 6: Final answer
    x = 298,894.58

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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.