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Finding the Fourth Proportional to 373,830.93, 515,868.75 and 212,670.90

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Solution

The fourth proportional to 373,830.93, 515,868.75 and 212,670.90 is: 293,475.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,830.93 : 515,868.75 = 212,670.90 : x
  2. Step 2: Convert to fraction form
    373,830.93/515,868.75 = 212,670.90/x
  3. Step 3: Cross multiply
    373,830.93x = 515,868.75 × 212,670.90
  4. Step 4: Simplify right side
    373,830.93x = 109,710,271,344.38
  5. Step 5: Solve for x
    x = 109,710,271,344.38/373,830.93
  6. Step 6: Final answer
    x = 293,475.64

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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.