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Finding the Fourth Proportional to 219,340.30, 302,690.58 and 118,738.30

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Solution

The fourth proportional to 219,340.30, 302,690.58 and 118,738.30 is: 163,859.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,340.30 : 302,690.58 = 118,738.30 : x
  2. Step 2: Convert to fraction form
    219,340.30/302,690.58 = 118,738.30/x
  3. Step 3: Cross multiply
    219,340.30x = 302,690.58 × 118,738.30
  4. Step 4: Simplify right side
    219,340.30x = 35,940,964,895.21
  5. Step 5: Solve for x
    x = 35,940,964,895.21/219,340.30
  6. Step 6: Final answer
    x = 163,859.38

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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.