Home / 354,049.12-488,364.52-210,702.16

Finding the Fourth Proportional to 354,049.12, 488,364.52 and 210,702.16

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Solution

The fourth proportional to 354,049.12, 488,364.52 and 210,702.16 is: 290,636.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,049.12 : 488,364.52 = 210,702.16 : x
  2. Step 2: Convert to fraction form
    354,049.12/488,364.52 = 210,702.16/x
  3. Step 3: Cross multiply
    354,049.12x = 488,364.52 × 210,702.16
  4. Step 4: Simplify right side
    354,049.12x = 102,899,459,231.36
  5. Step 5: Solve for x
    x = 102,899,459,231.36/354,049.12
  6. Step 6: Final answer
    x = 290,636.11

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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.