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Finding the Fourth Proportional to 377,803.08, 521,347.86 and 216,664.92

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Solution

The fourth proportional to 377,803.08, 521,347.86 and 216,664.92 is: 298,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,803.08 : 521,347.86 = 216,664.92 : x
  2. Step 2: Convert to fraction form
    377,803.08/521,347.86 = 216,664.92/x
  3. Step 3: Cross multiply
    377,803.08x = 521,347.86 × 216,664.92
  4. Step 4: Simplify right side
    377,803.08x = 112,957,792,379.07
  5. Step 5: Solve for x
    x = 112,957,792,379.07/377,803.08
  6. Step 6: Final answer
    x = 298,985.90

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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.