Home / 213,320.34-319,998.89-55,549.08

Finding the Fourth Proportional to 213,320.34, 319,998.89 and 55,549.08

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Solution

The fourth proportional to 213,320.34, 319,998.89 and 55,549.08 is: 83,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,320.34 : 319,998.89 = 55,549.08 : x
  2. Step 2: Convert to fraction form
    213,320.34/319,998.89 = 55,549.08/x
  3. Step 3: Cross multiply
    213,320.34x = 319,998.89 × 55,549.08
  4. Step 4: Simplify right side
    213,320.34x = 17,775,643,662.78
  5. Step 5: Solve for x
    x = 17,775,643,662.78/213,320.34
  6. Step 6: Final answer
    x = 83,328.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.