Home / 276,979.40-415,929.90-152,409.80

Finding the Fourth Proportional to 276,979.40, 415,929.90 and 152,409.80

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Solution

The fourth proportional to 276,979.40, 415,929.90 and 152,409.80 is: 228,868.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,979.40 : 415,929.90 = 152,409.80 : x
  2. Step 2: Convert to fraction form
    276,979.40/415,929.90 = 152,409.80/x
  3. Step 3: Cross multiply
    276,979.40x = 415,929.90 × 152,409.80
  4. Step 4: Simplify right side
    276,979.40x = 63,391,792,873.02
  5. Step 5: Solve for x
    x = 63,391,792,873.02/276,979.40
  6. Step 6: Final answer
    x = 228,868.26

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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.