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Finding the Fourth Proportional to 219,291.30, 302,622.84 and 118,689.30

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Solution

The fourth proportional to 219,291.30, 302,622.84 and 118,689.30 is: 163,791.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,291.30 : 302,622.84 = 118,689.30 : x
  2. Step 2: Convert to fraction form
    219,291.30/302,622.84 = 118,689.30/x
  3. Step 3: Cross multiply
    219,291.30x = 302,622.84 × 118,689.30
  4. Step 4: Simplify right side
    219,291.30x = 35,918,093,043.61
  5. Step 5: Solve for x
    x = 35,918,093,043.61/219,291.30
  6. Step 6: Final answer
    x = 163,791.69

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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.