Home / 256,533.12-384,806.40-121,565.52

Finding the Fourth Proportional to 256,533.12, 384,806.40 and 121,565.52

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Solution

The fourth proportional to 256,533.12, 384,806.40 and 121,565.52 is: 182,351.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,533.12 : 384,806.40 = 121,565.52 : x
  2. Step 2: Convert to fraction form
    256,533.12/384,806.40 = 121,565.52/x
  3. Step 3: Cross multiply
    256,533.12x = 384,806.40 × 121,565.52
  4. Step 4: Simplify right side
    256,533.12x = 46,779,190,115.33
  5. Step 5: Solve for x
    x = 46,779,190,115.33/256,533.12
  6. Step 6: Final answer
    x = 182,351.46

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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.