Home / 405,021.96-558,928.08-223,746.36

Finding the Fourth Proportional to 405,021.96, 558,928.08 and 223,746.36

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Solution

The fourth proportional to 405,021.96, 558,928.08 and 223,746.36 is: 308,768.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,021.96 : 558,928.08 = 223,746.36 : x
  2. Step 2: Convert to fraction form
    405,021.96/558,928.08 = 223,746.36/x
  3. Step 3: Cross multiply
    405,021.96x = 558,928.08 × 223,746.36
  4. Step 4: Simplify right side
    405,021.96x = 125,058,123,401.79
  5. Step 5: Solve for x
    x = 125,058,123,401.79/405,021.96
  6. Step 6: Final answer
    x = 308,768.75

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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.