Home / 223,213.66-308,038.08-121,239.52

Finding the Fourth Proportional to 223,213.66, 308,038.08 and 121,239.52

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Solution

The fourth proportional to 223,213.66, 308,038.08 and 121,239.52 is: 167,312.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,213.66 : 308,038.08 = 121,239.52 : x
  2. Step 2: Convert to fraction form
    223,213.66/308,038.08 = 121,239.52/x
  3. Step 3: Cross multiply
    223,213.66x = 308,038.08 × 121,239.52
  4. Step 4: Simplify right side
    223,213.66x = 37,346,388,960.92
  5. Step 5: Solve for x
    x = 37,346,388,960.92/223,213.66
  6. Step 6: Final answer
    x = 167,312.29

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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.