Home / 317,870.19-438,776.06-210,474.86

Finding the Fourth Proportional to 317,870.19, 438,776.06 and 210,474.86

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Solution

The fourth proportional to 317,870.19, 438,776.06 and 210,474.86 is: 290,531.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,870.19 : 438,776.06 = 210,474.86 : x
  2. Step 2: Convert to fraction form
    317,870.19/438,776.06 = 210,474.86/x
  3. Step 3: Cross multiply
    317,870.19x = 438,776.06 × 210,474.86
  4. Step 4: Simplify right side
    317,870.19x = 92,351,326,553.60
  5. Step 5: Solve for x
    x = 92,351,326,553.60/317,870.19
  6. Step 6: Final answer
    x = 290,531.57

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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.