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Finding the Fourth Proportional to 358,705.60, 538,038.88 and 109,368

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Solution

The fourth proportional to 358,705.60, 538,038.88 and 109,368 is: 164,046.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,705.60 : 538,038.88 = 109,368 : x
  2. Step 2: Convert to fraction form
    358,705.60/538,038.88 = 109,368/x
  3. Step 3: Cross multiply
    358,705.60x = 538,038.88 × 109,368
  4. Step 4: Simplify right side
    358,705.60x = 58,844,236,227.84
  5. Step 5: Solve for x
    x = 58,844,236,227.84/358,705.60
  6. Step 6: Final answer
    x = 164,046.05

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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.