Home / 628,442.85-942,651.51-155,132.31

Finding the Fourth Proportional to 628,442.85, 942,651.51 and 155,132.31

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Solution

The fourth proportional to 628,442.85, 942,651.51 and 155,132.31 is: 232,695.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,442.85 : 942,651.51 = 155,132.31 : x
  2. Step 2: Convert to fraction form
    628,442.85/942,651.51 = 155,132.31/x
  3. Step 3: Cross multiply
    628,442.85x = 942,651.51 × 155,132.31
  4. Step 4: Simplify right side
    628,442.85x = 146,235,706,271.29
  5. Step 5: Solve for x
    x = 146,235,706,271.29/628,442.85
  6. Step 6: Final answer
    x = 232,695.31

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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.