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Finding the Fourth Proportional to 369,638.22, 510,089.30 and 208,490.94

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Solution

The fourth proportional to 369,638.22, 510,089.30 and 208,490.94 is: 287,711.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,638.22 : 510,089.30 = 208,490.94 : x
  2. Step 2: Convert to fraction form
    369,638.22/510,089.30 = 208,490.94/x
  3. Step 3: Cross multiply
    369,638.22x = 510,089.30 × 208,490.94
  4. Step 4: Simplify right side
    369,638.22x = 106,348,996,598.49
  5. Step 5: Solve for x
    x = 106,348,996,598.49/369,638.22
  6. Step 6: Final answer
    x = 287,711.04

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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.