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Finding the Fourth Proportional to 255,557.55, 352,430.22 and 201,970.59

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Solution

The fourth proportional to 255,557.55, 352,430.22 and 201,970.59 is: 278,530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,557.55 : 352,430.22 = 201,970.59 : x
  2. Step 2: Convert to fraction form
    255,557.55/352,430.22 = 201,970.59/x
  3. Step 3: Cross multiply
    255,557.55x = 352,430.22 × 201,970.59
  4. Step 4: Simplify right side
    255,557.55x = 71,180,539,467.23
  5. Step 5: Solve for x
    x = 71,180,539,467.23/255,557.55
  6. Step 6: Final answer
    x = 278,530.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.