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Finding the Fourth Proportional to 236,520.55, 354,827.54 and 86,762.21

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Solution

The fourth proportional to 236,520.55, 354,827.54 and 86,762.21 is: 130,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,520.55 : 354,827.54 = 86,762.21 : x
  2. Step 2: Convert to fraction form
    236,520.55/354,827.54 = 86,762.21/x
  3. Step 3: Cross multiply
    236,520.55x = 354,827.54 × 86,762.21
  4. Step 4: Simplify right side
    236,520.55x = 30,785,621,992.52
  5. Step 5: Solve for x
    x = 30,785,621,992.52/236,520.55
  6. Step 6: Final answer
    x = 130,160.45

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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.