Home / 405,065.24-558,987.36-223,788.86

Finding the Fourth Proportional to 405,065.24, 558,987.36 and 223,788.86

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Solution

The fourth proportional to 405,065.24, 558,987.36 and 223,788.86 is: 308,827.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,065.24 : 558,987.36 = 223,788.86 : x
  2. Step 2: Convert to fraction form
    405,065.24/558,987.36 = 223,788.86/x
  3. Step 3: Cross multiply
    405,065.24x = 558,987.36 × 223,788.86
  4. Step 4: Simplify right side
    405,065.24x = 125,095,141,253.87
  5. Step 5: Solve for x
    x = 125,095,141,253.87/405,065.24
  6. Step 6: Final answer
    x = 308,827.15

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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.