Home / 256,349.21-384,273.87-102,429.33

Finding the Fourth Proportional to 256,349.21, 384,273.87 and 102,429.33

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Solution

The fourth proportional to 256,349.21, 384,273.87 and 102,429.33 is: 153,544.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,349.21 : 384,273.87 = 102,429.33 : x
  2. Step 2: Convert to fraction form
    256,349.21/384,273.87 = 102,429.33/x
  3. Step 3: Cross multiply
    256,349.21x = 384,273.87 × 102,429.33
  4. Step 4: Simplify right side
    256,349.21x = 39,360,915,040.61
  5. Step 5: Solve for x
    x = 39,360,915,040.61/256,349.21
  6. Step 6: Final answer
    x = 153,544.13

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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.