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Finding the Fourth Proportional to 373,421.04, 515,315.84 and 203,655.12

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Solution

The fourth proportional to 373,421.04, 515,315.84 and 203,655.12 is: 281,041.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,421.04 : 515,315.84 = 203,655.12 : x
  2. Step 2: Convert to fraction form
    373,421.04/515,315.84 = 203,655.12/x
  3. Step 3: Cross multiply
    373,421.04x = 515,315.84 × 203,655.12
  4. Step 4: Simplify right side
    373,421.04x = 104,946,709,233.10
  5. Step 5: Solve for x
    x = 104,946,709,233.10/373,421.04
  6. Step 6: Final answer
    x = 281,041.23

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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.