Home / 223,214.68-308,038.50-121,242.13

Finding the Fourth Proportional to 223,214.68, 308,038.50 and 121,242.13

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Solution

The fourth proportional to 223,214.68, 308,038.50 and 121,242.13 is: 167,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,214.68 : 308,038.50 = 121,242.13 : x
  2. Step 2: Convert to fraction form
    223,214.68/308,038.50 = 121,242.13/x
  3. Step 3: Cross multiply
    223,214.68x = 308,038.50 × 121,242.13
  4. Step 4: Simplify right side
    223,214.68x = 37,347,243,862.01
  5. Step 5: Solve for x
    x = 37,347,243,862.01/223,214.68
  6. Step 6: Final answer
    x = 167,315.36

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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.