Home / 405,079.02-558,980.94-223,789.50

Finding the Fourth Proportional to 405,079.02, 558,980.94 and 223,789.50

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Solution

The fourth proportional to 405,079.02, 558,980.94 and 223,789.50 is: 308,813.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,079.02 : 558,980.94 = 223,789.50 : x
  2. Step 2: Convert to fraction form
    405,079.02/558,980.94 = 223,789.50/x
  3. Step 3: Cross multiply
    405,079.02x = 558,980.94 × 223,789.50
  4. Step 4: Simplify right side
    405,079.02x = 125,094,065,072.13
  5. Step 5: Solve for x
    x = 125,094,065,072.13/405,079.02
  6. Step 6: Final answer
    x = 308,813.98

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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.