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Finding the Fourth Proportional to 373,271.74, 515,115 and 212,127.10

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Solution

The fourth proportional to 373,271.74, 515,115 and 212,127.10 is: 292,735.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,271.74 : 515,115 = 212,127.10 : x
  2. Step 2: Convert to fraction form
    373,271.74/515,115 = 212,127.10/x
  3. Step 3: Cross multiply
    373,271.74x = 515,115 × 212,127.10
  4. Step 4: Simplify right side
    373,271.74x = 109,269,851,116.50
  5. Step 5: Solve for x
    x = 109,269,851,116.50/373,271.74
  6. Step 6: Final answer
    x = 292,735.40

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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.