Home / 219,453.09-302,841.65-122,659.20

Finding the Fourth Proportional to 219,453.09, 302,841.65 and 122,659.20

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Solution

The fourth proportional to 219,453.09, 302,841.65 and 122,659.20 is: 169,267.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,453.09 : 302,841.65 = 122,659.20 : x
  2. Step 2: Convert to fraction form
    219,453.09/302,841.65 = 122,659.20/x
  3. Step 3: Cross multiply
    219,453.09x = 302,841.65 × 122,659.20
  4. Step 4: Simplify right side
    219,453.09x = 37,146,314,515.68
  5. Step 5: Solve for x
    x = 37,146,314,515.68/219,453.09
  6. Step 6: Final answer
    x = 169,267.68

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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.