Home / 243,243.14-335,490.75-209,308.46

Finding the Fourth Proportional to 243,243.14, 335,490.75 and 209,308.46

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Solution

The fourth proportional to 243,243.14, 335,490.75 and 209,308.46 is: 288,686.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,243.14 : 335,490.75 = 209,308.46 : x
  2. Step 2: Convert to fraction form
    243,243.14/335,490.75 = 209,308.46/x
  3. Step 3: Cross multiply
    243,243.14x = 335,490.75 × 209,308.46
  4. Step 4: Simplify right side
    243,243.14x = 70,221,052,226.75
  5. Step 5: Solve for x
    x = 70,221,052,226.75/243,243.14
  6. Step 6: Final answer
    x = 288,686.67

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1.5x scale

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.