Home / 219,481.83-302,880.54-122,685.21

Finding the Fourth Proportional to 219,481.83, 302,880.54 and 122,685.21

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Solution

The fourth proportional to 219,481.83, 302,880.54 and 122,685.21 is: 169,303.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,481.83 : 302,880.54 = 122,685.21 : x
  2. Step 2: Convert to fraction form
    219,481.83/302,880.54 = 122,685.21/x
  3. Step 3: Cross multiply
    219,481.83x = 302,880.54 × 122,685.21
  4. Step 4: Simplify right side
    219,481.83x = 37,158,962,654.81
  5. Step 5: Solve for x
    x = 37,158,962,654.81/219,481.83
  6. Step 6: Final answer
    x = 169,303.14

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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.