Home / 286,702.98-430,004.18-109,220.64

Finding the Fourth Proportional to 286,702.98, 430,004.18 and 109,220.64

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Solution

The fourth proportional to 286,702.98, 430,004.18 and 109,220.64 is: 163,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,702.98 : 430,004.18 = 109,220.64 : x
  2. Step 2: Convert to fraction form
    286,702.98/430,004.18 = 109,220.64/x
  3. Step 3: Cross multiply
    286,702.98x = 430,004.18 × 109,220.64
  4. Step 4: Simplify right side
    286,702.98x = 46,965,331,196.17
  5. Step 5: Solve for x
    x = 46,965,331,196.17/286,702.98
  6. Step 6: Final answer
    x = 163,811.80

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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.