Home / 219,213.96-302,515.68-122,417.32

Finding the Fourth Proportional to 219,213.96, 302,515.68 and 122,417.32

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Solution

The fourth proportional to 219,213.96, 302,515.68 and 122,417.32 is: 168,936.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,213.96 : 302,515.68 = 122,417.32 : x
  2. Step 2: Convert to fraction form
    219,213.96/302,515.68 = 122,417.32/x
  3. Step 3: Cross multiply
    219,213.96x = 302,515.68 × 122,417.32
  4. Step 4: Simplify right side
    219,213.96x = 37,033,158,803.58
  5. Step 5: Solve for x
    x = 37,033,158,803.58/219,213.96
  6. Step 6: Final answer
    x = 168,936.13

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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.