Home / 397,808.47-548,989.23-216,527.05

Finding the Fourth Proportional to 397,808.47, 548,989.23 and 216,527.05

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Solution

The fourth proportional to 397,808.47, 548,989.23 and 216,527.05 is: 298,814.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,808.47 : 548,989.23 = 216,527.05 : x
  2. Step 2: Convert to fraction form
    397,808.47/548,989.23 = 216,527.05/x
  3. Step 3: Cross multiply
    397,808.47x = 548,989.23 × 216,527.05
  4. Step 4: Simplify right side
    397,808.47x = 118,871,018,453.67
  5. Step 5: Solve for x
    x = 118,871,018,453.67/397,808.47
  6. Step 6: Final answer
    x = 298,814.70

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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.