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Finding the Fourth Proportional to 213,980.94, 295,290.08 and 118,485.58

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Solution

The fourth proportional to 213,980.94, 295,290.08 and 118,485.58 is: 163,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,980.94 : 295,290.08 = 118,485.58 : x
  2. Step 2: Convert to fraction form
    213,980.94/295,290.08 = 118,485.58/x
  3. Step 3: Cross multiply
    213,980.94x = 295,290.08 × 118,485.58
  4. Step 4: Simplify right side
    213,980.94x = 34,987,616,397.05
  5. Step 5: Solve for x
    x = 34,987,616,397.05/213,980.94
  6. Step 6: Final answer
    x = 163,508.10

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1.5x scale

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.