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Finding the Fourth Proportional to 495,353.34, 683,591.40 and 268,998.84

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Solution

The fourth proportional to 495,353.34, 683,591.40 and 268,998.84 is: 371,220.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,353.34 : 683,591.40 = 268,998.84 : x
  2. Step 2: Convert to fraction form
    495,353.34/683,591.40 = 268,998.84/x
  3. Step 3: Cross multiply
    495,353.34x = 683,591.40 × 268,998.84
  4. Step 4: Simplify right side
    495,353.34x = 183,885,293,633.98
  5. Step 5: Solve for x
    x = 183,885,293,633.98/495,353.34
  6. Step 6: Final answer
    x = 371,220.46

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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.