Home / 355,634.36-533,340.56-118,921.78

Finding the Fourth Proportional to 355,634.36, 533,340.56 and 118,921.78

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Solution

The fourth proportional to 355,634.36, 533,340.56 and 118,921.78 is: 178,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,634.36 : 533,340.56 = 118,921.78 : x
  2. Step 2: Convert to fraction form
    355,634.36/533,340.56 = 118,921.78/x
  3. Step 3: Cross multiply
    355,634.36x = 533,340.56 × 118,921.78
  4. Step 4: Simplify right side
    355,634.36x = 63,425,808,741.40
  5. Step 5: Solve for x
    x = 63,425,808,741.40/355,634.36
  6. Step 6: Final answer
    x = 178,345.56

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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.