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Finding the Fourth Proportional to 296,792.64, 445,230.54 and 97,128.72

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Solution

The fourth proportional to 296,792.64, 445,230.54 and 97,128.72 is: 145,706.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,792.64 : 445,230.54 = 97,128.72 : x
  2. Step 2: Convert to fraction form
    296,792.64/445,230.54 = 97,128.72/x
  3. Step 3: Cross multiply
    296,792.64x = 445,230.54 × 97,128.72
  4. Step 4: Simplify right side
    296,792.64x = 43,244,672,455.11
  5. Step 5: Solve for x
    x = 43,244,672,455.11/296,792.64
  6. Step 6: Final answer
    x = 145,706.69

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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.