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Finding the Fourth Proportional to 277,420.40, 382,838.60 and 156,600.96

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Solution

The fourth proportional to 277,420.40, 382,838.60 and 156,600.96 is: 216,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,420.40 : 382,838.60 = 156,600.96 : x
  2. Step 2: Convert to fraction form
    277,420.40/382,838.60 = 156,600.96/x
  3. Step 3: Cross multiply
    277,420.40x = 382,838.60 × 156,600.96
  4. Step 4: Simplify right side
    277,420.40x = 59,952,892,285.06
  5. Step 5: Solve for x
    x = 59,952,892,285.06/277,420.40
  6. Step 6: Final answer
    x = 216,108.45

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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.