Home / 412,631.76-618,743.52-146,352.36

Finding the Fourth Proportional to 412,631.76, 618,743.52 and 146,352.36

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Solution

The fourth proportional to 412,631.76, 618,743.52 and 146,352.36 is: 219,456.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,631.76 : 618,743.52 = 146,352.36 : x
  2. Step 2: Convert to fraction form
    412,631.76/618,743.52 = 146,352.36/x
  3. Step 3: Cross multiply
    412,631.76x = 618,743.52 × 146,352.36
  4. Step 4: Simplify right side
    412,631.76x = 90,554,574,386.71
  5. Step 5: Solve for x
    x = 90,554,574,386.71/412,631.76
  6. Step 6: Final answer
    x = 219,456.14

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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.