Home / 441,678.21-662,623.01-142,186.78

Finding the Fourth Proportional to 441,678.21, 662,623.01 and 142,186.78

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Solution

The fourth proportional to 441,678.21, 662,623.01 and 142,186.78 is: 213,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,678.21 : 662,623.01 = 142,186.78 : x
  2. Step 2: Convert to fraction form
    441,678.21/662,623.01 = 142,186.78/x
  3. Step 3: Cross multiply
    441,678.21x = 662,623.01 × 142,186.78
  4. Step 4: Simplify right side
    441,678.21x = 94,216,232,145.81
  5. Step 5: Solve for x
    x = 94,216,232,145.81/441,678.21
  6. Step 6: Final answer
    x = 213,314.20

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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.