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Finding the Fourth Proportional to 628,671.87, 942,998.58 and 155,357.22

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Solution

The fourth proportional to 628,671.87, 942,998.58 and 155,357.22 is: 233,033.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,671.87 : 942,998.58 = 155,357.22 : x
  2. Step 2: Convert to fraction form
    628,671.87/942,998.58 = 155,357.22/x
  3. Step 3: Cross multiply
    628,671.87x = 942,998.58 × 155,357.22
  4. Step 4: Simplify right side
    628,671.87x = 146,501,637,852.75
  5. Step 5: Solve for x
    x = 146,501,637,852.75/628,671.87
  6. Step 6: Final answer
    x = 233,033.55

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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.