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Finding the Fourth Proportional to 538,505.50, 807,758.26 and 144,521.50

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Solution

The fourth proportional to 538,505.50, 807,758.26 and 144,521.50 is: 216,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,505.50 : 807,758.26 = 144,521.50 : x
  2. Step 2: Convert to fraction form
    538,505.50/807,758.26 = 144,521.50/x
  3. Step 3: Cross multiply
    538,505.50x = 807,758.26 × 144,521.50
  4. Step 4: Simplify right side
    538,505.50x = 116,738,435,372.59
  5. Step 5: Solve for x
    x = 116,738,435,372.59/538,505.50
  6. Step 6: Final answer
    x = 216,782.25

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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.