Home / 328,263.40-453,056.34-247,781.80

Finding the Fourth Proportional to 328,263.40, 453,056.34 and 247,781.80

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Solution

The fourth proportional to 328,263.40, 453,056.34 and 247,781.80 is: 341,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,263.40 : 453,056.34 = 247,781.80 : x
  2. Step 2: Convert to fraction form
    328,263.40/453,056.34 = 247,781.80/x
  3. Step 3: Cross multiply
    328,263.40x = 453,056.34 × 247,781.80
  4. Step 4: Simplify right side
    328,263.40x = 112,259,115,426.61
  5. Step 5: Solve for x
    x = 112,259,115,426.61/328,263.40
  6. Step 6: Final answer
    x = 341,978.78

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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.