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Finding the Fourth Proportional to 277,740.04, 383,253.86 and 155,209.80

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Solution

The fourth proportional to 277,740.04, 383,253.86 and 155,209.80 is: 214,174.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,740.04 : 383,253.86 = 155,209.80 : x
  2. Step 2: Convert to fraction form
    277,740.04/383,253.86 = 155,209.80/x
  3. Step 3: Cross multiply
    277,740.04x = 383,253.86 × 155,209.80
  4. Step 4: Simplify right side
    277,740.04x = 59,484,754,959.83
  5. Step 5: Solve for x
    x = 59,484,754,959.83/277,740.04
  6. Step 6: Final answer
    x = 214,174.21

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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.