Home / 223,284.55-308,136.17-121,312.03

Finding the Fourth Proportional to 223,284.55, 308,136.17 and 121,312.03

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Solution

The fourth proportional to 223,284.55, 308,136.17 and 121,312.03 is: 167,412.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,284.55 : 308,136.17 = 121,312.03 : x
  2. Step 2: Convert to fraction form
    223,284.55/308,136.17 = 121,312.03/x
  3. Step 3: Cross multiply
    223,284.55x = 308,136.17 × 121,312.03
  4. Step 4: Simplify right side
    223,284.55x = 37,380,623,832.06
  5. Step 5: Solve for x
    x = 37,380,623,832.06/223,284.55
  6. Step 6: Final answer
    x = 167,412.50

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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.