Home / 385,030.09-531,128.22-223,867.33

Finding the Fourth Proportional to 385,030.09, 531,128.22 and 223,867.33

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Solution

The fourth proportional to 385,030.09, 531,128.22 and 223,867.33 is: 308,812.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,030.09 : 531,128.22 = 223,867.33 : x
  2. Step 2: Convert to fraction form
    385,030.09/531,128.22 = 223,867.33/x
  3. Step 3: Cross multiply
    385,030.09x = 531,128.22 × 223,867.33
  4. Step 4: Simplify right side
    385,030.09x = 118,902,254,331.73
  5. Step 5: Solve for x
    x = 118,902,254,331.73/385,030.09
  6. Step 6: Final answer
    x = 308,812.89

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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.