Home / 355,719.45-533,580.09-145,357.39

Finding the Fourth Proportional to 355,719.45, 533,580.09 and 145,357.39

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Solution

The fourth proportional to 355,719.45, 533,580.09 and 145,357.39 is: 218,036.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,719.45 : 533,580.09 = 145,357.39 : x
  2. Step 2: Convert to fraction form
    355,719.45/533,580.09 = 145,357.39/x
  3. Step 3: Cross multiply
    355,719.45x = 533,580.09 × 145,357.39
  4. Step 4: Simplify right side
    355,719.45x = 77,559,809,238.37
  5. Step 5: Solve for x
    x = 77,559,809,238.37/355,719.45
  6. Step 6: Final answer
    x = 218,036.46

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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.