Home / 277,905.16-383,513.54-155,411.29

Finding the Fourth Proportional to 277,905.16, 383,513.54 and 155,411.29

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Solution

The fourth proportional to 277,905.16, 383,513.54 and 155,411.29 is: 214,470.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,905.16 : 383,513.54 = 155,411.29 : x
  2. Step 2: Convert to fraction form
    277,905.16/383,513.54 = 155,411.29/x
  3. Step 3: Cross multiply
    277,905.16x = 383,513.54 × 155,411.29
  4. Step 4: Simplify right side
    277,905.16x = 59,602,333,983.87
  5. Step 5: Solve for x
    x = 59,602,333,983.87/277,905.16
  6. Step 6: Final answer
    x = 214,470.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.