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Finding the Fourth Proportional to 373,792.18, 515,815.27 and 212,632.15

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Solution

The fourth proportional to 373,792.18, 515,815.27 and 212,632.15 is: 293,422.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,792.18 : 515,815.27 = 212,632.15 : x
  2. Step 2: Convert to fraction form
    373,792.18/515,815.27 = 212,632.15/x
  3. Step 3: Cross multiply
    373,792.18x = 515,815.27 × 212,632.15
  4. Step 4: Simplify right side
    373,792.18x = 109,678,909,862.93
  5. Step 5: Solve for x
    x = 109,678,909,862.93/373,792.18
  6. Step 6: Final answer
    x = 293,422.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.