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Finding the Fourth Proportional to 255,456.32, 383,223.36 and 155,690.24

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Solution

The fourth proportional to 255,456.32, 383,223.36 and 155,690.24 is: 233,559.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,456.32 : 383,223.36 = 155,690.24 : x
  2. Step 2: Convert to fraction form
    255,456.32/383,223.36 = 155,690.24/x
  3. Step 3: Cross multiply
    255,456.32x = 383,223.36 × 155,690.24
  4. Step 4: Simplify right side
    255,456.32x = 59,664,136,892.01
  5. Step 5: Solve for x
    x = 59,664,136,892.01/255,456.32
  6. Step 6: Final answer
    x = 233,559.06

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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.