Home / 263,985.40-363,947.44-209,717.63

Finding the Fourth Proportional to 263,985.40, 363,947.44 and 209,717.63

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Solution

The fourth proportional to 263,985.40, 363,947.44 and 209,717.63 is: 289,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,985.40 : 363,947.44 = 209,717.63 : x
  2. Step 2: Convert to fraction form
    263,985.40/363,947.44 = 209,717.63/x
  3. Step 3: Cross multiply
    263,985.40x = 363,947.44 × 209,717.63
  4. Step 4: Simplify right side
    263,985.40x = 76,326,191,693.04
  5. Step 5: Solve for x
    x = 76,326,191,693.04/263,985.40
  6. Step 6: Final answer
    x = 289,130.35

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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.