Home / 319,830.94-479,569.92-130,242.70

Finding the Fourth Proportional to 319,830.94, 479,569.92 and 130,242.70

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Solution

The fourth proportional to 319,830.94, 479,569.92 and 130,242.70 is: 195,292.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,830.94 : 479,569.92 = 130,242.70 : x
  2. Step 2: Convert to fraction form
    319,830.94/479,569.92 = 130,242.70/x
  3. Step 3: Cross multiply
    319,830.94x = 479,569.92 × 130,242.70
  4. Step 4: Simplify right side
    319,830.94x = 62,460,481,219.58
  5. Step 5: Solve for x
    x = 62,460,481,219.58/319,830.94
  6. Step 6: Final answer
    x = 195,292.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.