Home / 421,579.25-632,377.10-155,202.65

Finding the Fourth Proportional to 421,579.25, 632,377.10 and 155,202.65

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Solution

The fourth proportional to 421,579.25, 632,377.10 and 155,202.65 is: 232,807.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,579.25 : 632,377.10 = 155,202.65 : x
  2. Step 2: Convert to fraction form
    421,579.25/632,377.10 = 155,202.65/x
  3. Step 3: Cross multiply
    421,579.25x = 632,377.10 × 155,202.65
  4. Step 4: Simplify right side
    421,579.25x = 98,146,601,719.32
  5. Step 5: Solve for x
    x = 98,146,601,719.32/421,579.25
  6. Step 6: Final answer
    x = 232,807.00

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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.