Home / 236,678.64-355,008.24-131,430.48

Finding the Fourth Proportional to 236,678.64, 355,008.24 and 131,430.48

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Solution

The fourth proportional to 236,678.64, 355,008.24 and 131,430.48 is: 197,140.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,678.64 : 355,008.24 = 131,430.48 : x
  2. Step 2: Convert to fraction form
    236,678.64/355,008.24 = 131,430.48/x
  3. Step 3: Cross multiply
    236,678.64x = 355,008.24 × 131,430.48
  4. Step 4: Simplify right side
    236,678.64x = 46,658,903,387.16
  5. Step 5: Solve for x
    x = 46,658,903,387.16/236,678.64
  6. Step 6: Final answer
    x = 197,140.32

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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.