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Finding the Fourth Proportional to 658,085.22, 987,128.10 and 237,361.05

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Solution

The fourth proportional to 658,085.22, 987,128.10 and 237,361.05 is: 356,041.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,085.22 : 987,128.10 = 237,361.05 : x
  2. Step 2: Convert to fraction form
    658,085.22/987,128.10 = 237,361.05/x
  3. Step 3: Cross multiply
    658,085.22x = 987,128.10 × 237,361.05
  4. Step 4: Simplify right side
    658,085.22x = 234,305,762,300.51
  5. Step 5: Solve for x
    x = 234,305,762,300.51/658,085.22
  6. Step 6: Final answer
    x = 356,041.67

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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.