Home / 312,516.04-430,988.66-205,045.24

Finding the Fourth Proportional to 312,516.04, 430,988.66 and 205,045.24

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Solution

The fourth proportional to 312,516.04, 430,988.66 and 205,045.24 is: 282,776.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,516.04 : 430,988.66 = 205,045.24 : x
  2. Step 2: Convert to fraction form
    312,516.04/430,988.66 = 205,045.24/x
  3. Step 3: Cross multiply
    312,516.04x = 430,988.66 × 205,045.24
  4. Step 4: Simplify right side
    312,516.04x = 88,372,173,226.98
  5. Step 5: Solve for x
    x = 88,372,173,226.98/312,516.04
  6. Step 6: Final answer
    x = 282,776.44

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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.