Home / 319,817.40-479,725.16-130,233.12

Finding the Fourth Proportional to 319,817.40, 479,725.16 and 130,233.12

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Solution

The fourth proportional to 319,817.40, 479,725.16 and 130,233.12 is: 195,349.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,817.40 : 479,725.16 = 130,233.12 : x
  2. Step 2: Convert to fraction form
    319,817.40/479,725.16 = 130,233.12/x
  3. Step 3: Cross multiply
    319,817.40x = 479,725.16 × 130,233.12
  4. Step 4: Simplify right side
    319,817.40x = 62,476,103,678.13
  5. Step 5: Solve for x
    x = 62,476,103,678.13/319,817.40
  6. Step 6: Final answer
    x = 195,349.30

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1.5x scale

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.