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Finding the Fourth Proportional to 319,797.72, 479,594.52 and 130,257.72

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Solution

The fourth proportional to 319,797.72, 479,594.52 and 130,257.72 is: 195,345.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,797.72 : 479,594.52 = 130,257.72 : x
  2. Step 2: Convert to fraction form
    319,797.72/479,594.52 = 130,257.72/x
  3. Step 3: Cross multiply
    319,797.72x = 479,594.52 × 130,257.72
  4. Step 4: Simplify right side
    319,797.72x = 62,470,888,699.69
  5. Step 5: Solve for x
    x = 62,470,888,699.69/319,797.72
  6. Step 6: Final answer
    x = 195,345.01

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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.