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Finding the Fourth Proportional to 373,384.32, 515,256.63 and 203,614.80

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Solution

The fourth proportional to 373,384.32, 515,256.63 and 203,614.80 is: 280,980.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,384.32 : 515,256.63 = 203,614.80 : x
  2. Step 2: Convert to fraction form
    373,384.32/515,256.63 = 203,614.80/x
  3. Step 3: Cross multiply
    373,384.32x = 515,256.63 × 203,614.80
  4. Step 4: Simplify right side
    373,384.32x = 104,913,875,666.12
  5. Step 5: Solve for x
    x = 104,913,875,666.12/373,384.32
  6. Step 6: Final answer
    x = 280,980.94

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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.