Home / 255,769.40-383,135.70-144,831.80

Finding the Fourth Proportional to 255,769.40, 383,135.70 and 144,831.80

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Solution

The fourth proportional to 255,769.40, 383,135.70 and 144,831.80 is: 216,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,769.40 : 383,135.70 = 144,831.80 : x
  2. Step 2: Convert to fraction form
    255,769.40/383,135.70 = 144,831.80/x
  3. Step 3: Cross multiply
    255,769.40x = 383,135.70 × 144,831.80
  4. Step 4: Simplify right side
    255,769.40x = 55,490,233,075.26
  5. Step 5: Solve for x
    x = 55,490,233,075.26/255,769.40
  6. Step 6: Final answer
    x = 216,954.15

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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.