Home / 303,419.10-455,128.65-277,831.20

Finding the Fourth Proportional to 303,419.10, 455,128.65 and 277,831.20

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Solution

The fourth proportional to 303,419.10, 455,128.65 and 277,831.20 is: 416,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,419.10 : 455,128.65 = 277,831.20 : x
  2. Step 2: Convert to fraction form
    303,419.10/455,128.65 = 277,831.20/x
  3. Step 3: Cross multiply
    303,419.10x = 455,128.65 × 277,831.20
  4. Step 4: Simplify right side
    303,419.10x = 126,448,938,983.88
  5. Step 5: Solve for x
    x = 126,448,938,983.88/303,419.10
  6. Step 6: Final answer
    x = 416,746.80

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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.