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Finding the Fourth Proportional to 237,387.21, 356,080.80 and 79,615.21

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Solution

The fourth proportional to 237,387.21, 356,080.80 and 79,615.21 is: 119,422.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,387.21 : 356,080.80 = 79,615.21 : x
  2. Step 2: Convert to fraction form
    237,387.21/356,080.80 = 79,615.21/x
  3. Step 3: Cross multiply
    237,387.21x = 356,080.80 × 79,615.21
  4. Step 4: Simplify right side
    237,387.21x = 28,349,447,077.32
  5. Step 5: Solve for x
    x = 28,349,447,077.32/237,387.21
  6. Step 6: Final answer
    x = 119,422.81

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1.5x scale

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.