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Finding the Fourth Proportional to 277,803.76, 383,360.18 and 155,292.88

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Solution

The fourth proportional to 277,803.76, 383,360.18 and 155,292.88 is: 214,299.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,803.76 : 383,360.18 = 155,292.88 : x
  2. Step 2: Convert to fraction form
    277,803.76/383,360.18 = 155,292.88/x
  3. Step 3: Cross multiply
    277,803.76x = 383,360.18 × 155,292.88
  4. Step 4: Simplify right side
    277,803.76x = 59,533,106,429.52
  5. Step 5: Solve for x
    x = 59,533,106,429.52/277,803.76
  6. Step 6: Final answer
    x = 214,299.14

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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.