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Finding the Fourth Proportional to 624,720.42, 937,080.61 and 151,405.78

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Solution

The fourth proportional to 624,720.42, 937,080.61 and 151,405.78 is: 227,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,720.42 : 937,080.61 = 151,405.78 : x
  2. Step 2: Convert to fraction form
    624,720.42/937,080.61 = 151,405.78/x
  3. Step 3: Cross multiply
    624,720.42x = 937,080.61 × 151,405.78
  4. Step 4: Simplify right side
    624,720.42x = 141,879,420,679.93
  5. Step 5: Solve for x
    x = 141,879,420,679.93/624,720.42
  6. Step 6: Final answer
    x = 227,108.67

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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.