Home / 223,215.02-308,038.99-121,242.47

Finding the Fourth Proportional to 223,215.02, 308,038.99 and 121,242.47

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Solution

The fourth proportional to 223,215.02, 308,038.99 and 121,242.47 is: 167,315.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,215.02 : 308,038.99 = 121,242.47 : x
  2. Step 2: Convert to fraction form
    223,215.02/308,038.99 = 121,242.47/x
  3. Step 3: Cross multiply
    223,215.02x = 308,038.99 × 121,242.47
  4. Step 4: Simplify right side
    223,215.02x = 37,347,407,779.66
  5. Step 5: Solve for x
    x = 37,347,407,779.66/223,215.02
  6. Step 6: Final answer
    x = 167,315.84

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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.