Home / 385,546.20-578,405.70-148,867.80

Finding the Fourth Proportional to 385,546.20, 578,405.70 and 148,867.80

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Solution

The fourth proportional to 385,546.20, 578,405.70 and 148,867.80 is: 223,335.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,546.20 : 578,405.70 = 148,867.80 : x
  2. Step 2: Convert to fraction form
    385,546.20/578,405.70 = 148,867.80/x
  3. Step 3: Cross multiply
    385,546.20x = 578,405.70 × 148,867.80
  4. Step 4: Simplify right side
    385,546.20x = 86,105,984,066.46
  5. Step 5: Solve for x
    x = 86,105,984,066.46/385,546.20
  6. Step 6: Final answer
    x = 223,335.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.