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Finding the Fourth Proportional to 557,410, 836,253.88 and 163,426

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Solution

The fourth proportional to 557,410, 836,253.88 and 163,426 is: 245,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,410 : 836,253.88 = 163,426 : x
  2. Step 2: Convert to fraction form
    557,410/836,253.88 = 163,426/x
  3. Step 3: Cross multiply
    557,410x = 836,253.88 × 163,426
  4. Step 4: Simplify right side
    557,410x = 136,665,626,592.88
  5. Step 5: Solve for x
    x = 136,665,626,592.88/557,410
  6. Step 6: Final answer
    x = 245,179.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.