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Finding the Fourth Proportional to 277,415.40, 416,123.10 and 211,060.20

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Solution

The fourth proportional to 277,415.40, 416,123.10 and 211,060.20 is: 316,590.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,415.40 : 416,123.10 = 211,060.20 : x
  2. Step 2: Convert to fraction form
    277,415.40/416,123.10 = 211,060.20/x
  3. Step 3: Cross multiply
    277,415.40x = 416,123.10 × 211,060.20
  4. Step 4: Simplify right side
    277,415.40x = 87,827,024,710.62
  5. Step 5: Solve for x
    x = 87,827,024,710.62/277,415.40
  6. Step 6: Final answer
    x = 316,590.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.