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Finding the Fourth Proportional to 277,898.49, 383,482.13 and 155,400.98

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Solution

The fourth proportional to 277,898.49, 383,482.13 and 155,400.98 is: 214,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,898.49 : 383,482.13 = 155,400.98 : x
  2. Step 2: Convert to fraction form
    277,898.49/383,482.13 = 155,400.98/x
  3. Step 3: Cross multiply
    277,898.49x = 383,482.13 × 155,400.98
  4. Step 4: Simplify right side
    277,898.49x = 59,593,496,120.07
  5. Step 5: Solve for x
    x = 59,593,496,120.07/277,898.49
  6. Step 6: Final answer
    x = 214,443.40

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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.