Home / 312,518.04-430,991.43-205,047.24

Finding the Fourth Proportional to 312,518.04, 430,991.43 and 205,047.24

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Solution

The fourth proportional to 312,518.04, 430,991.43 and 205,047.24 is: 282,779.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,518.04 : 430,991.43 = 205,047.24 : x
  2. Step 2: Convert to fraction form
    312,518.04/430,991.43 = 205,047.24/x
  3. Step 3: Cross multiply
    312,518.04x = 430,991.43 × 205,047.24
  4. Step 4: Simplify right side
    312,518.04x = 88,373,603,185.15
  5. Step 5: Solve for x
    x = 88,373,603,185.15/312,518.04
  6. Step 6: Final answer
    x = 282,779.21

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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.