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Finding the Fourth Proportional to 618,129.60, 926,751.60 and 238,725.60

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Solution

The fourth proportional to 618,129.60, 926,751.60 and 238,725.60 is: 357,917.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,129.60 : 926,751.60 = 238,725.60 : x
  2. Step 2: Convert to fraction form
    618,129.60/926,751.60 = 238,725.60/x
  3. Step 3: Cross multiply
    618,129.60x = 926,751.60 × 238,725.60
  4. Step 4: Simplify right side
    618,129.60x = 221,239,331,760.96
  5. Step 5: Solve for x
    x = 221,239,331,760.96/618,129.60
  6. Step 6: Final answer
    x = 357,917.39

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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.