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Finding the Fourth Proportional to 373,342.72, 515,210.88 and 203,573.20

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Solution

The fourth proportional to 373,342.72, 515,210.88 and 203,573.20 is: 280,929.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,342.72 : 515,210.88 = 203,573.20 : x
  2. Step 2: Convert to fraction form
    373,342.72/515,210.88 = 203,573.20/x
  3. Step 3: Cross multiply
    373,342.72x = 515,210.88 × 203,573.20
  4. Step 4: Simplify right side
    373,342.72x = 104,883,127,516.42
  5. Step 5: Solve for x
    x = 104,883,127,516.42/373,342.72
  6. Step 6: Final answer
    x = 280,929.89

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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.