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Finding the Fourth Proportional to 277,479.94, 382,939.66 and 156,641.70

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Solution

The fourth proportional to 277,479.94, 382,939.66 and 156,641.70 is: 216,175.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,479.94 : 382,939.66 = 156,641.70 : x
  2. Step 2: Convert to fraction form
    277,479.94/382,939.66 = 156,641.70/x
  3. Step 3: Cross multiply
    277,479.94x = 382,939.66 × 156,641.70
  4. Step 4: Simplify right side
    277,479.94x = 59,984,319,339.82
  5. Step 5: Solve for x
    x = 59,984,319,339.82/277,479.94
  6. Step 6: Final answer
    x = 216,175.34

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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.