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Finding the Fourth Proportional to 277,348.60, 382,698.30 and 156,480.40

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Solution

The fourth proportional to 277,348.60, 382,698.30 and 156,480.40 is: 215,918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,348.60 : 382,698.30 = 156,480.40 : x
  2. Step 2: Convert to fraction form
    277,348.60/382,698.30 = 156,480.40/x
  3. Step 3: Cross multiply
    277,348.60x = 382,698.30 × 156,480.40
  4. Step 4: Simplify right side
    277,348.60x = 59,884,783,063.32
  5. Step 5: Solve for x
    x = 59,884,783,063.32/277,348.60
  6. Step 6: Final answer
    x = 215,918.82

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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.