Home / 219,136.51-302,404.62-122,335.30

Finding the Fourth Proportional to 219,136.51, 302,404.62 and 122,335.30

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Solution

The fourth proportional to 219,136.51, 302,404.62 and 122,335.30 is: 168,820.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,136.51 : 302,404.62 = 122,335.30 : x
  2. Step 2: Convert to fraction form
    219,136.51/302,404.62 = 122,335.30/x
  3. Step 3: Cross multiply
    219,136.51x = 302,404.62 × 122,335.30
  4. Step 4: Simplify right side
    219,136.51x = 36,994,759,909.09
  5. Step 5: Solve for x
    x = 36,994,759,909.09/219,136.51
  6. Step 6: Final answer
    x = 168,820.61

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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.