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Finding the Fourth Proportional to 219,457.84, 302,858.04 and 123,968.56

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Solution

The fourth proportional to 219,457.84, 302,858.04 and 123,968.56 is: 171,080.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,457.84 : 302,858.04 = 123,968.56 : x
  2. Step 2: Convert to fraction form
    219,457.84/302,858.04 = 123,968.56/x
  3. Step 3: Cross multiply
    219,457.84x = 302,858.04 × 123,968.56
  4. Step 4: Simplify right side
    219,457.84x = 37,544,875,103.22
  5. Step 5: Solve for x
    x = 37,544,875,103.22/219,457.84
  6. Step 6: Final answer
    x = 171,080.13

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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.