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Finding the Fourth Proportional to 373,546.95, 515,509.21 and 212,416.62

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Solution

The fourth proportional to 373,546.95, 515,509.21 and 212,416.62 is: 293,143.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,546.95 : 515,509.21 = 212,416.62 : x
  2. Step 2: Convert to fraction form
    373,546.95/515,509.21 = 212,416.62/x
  3. Step 3: Cross multiply
    373,546.95x = 515,509.21 × 212,416.62
  4. Step 4: Simplify right side
    373,546.95x = 109,502,723,967.07
  5. Step 5: Solve for x
    x = 109,502,723,967.07/373,546.95
  6. Step 6: Final answer
    x = 293,143.13

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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.