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Finding the Fourth Proportional to 424,910.40, 637,070.16 and 188,123.76

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Solution

The fourth proportional to 424,910.40, 637,070.16 and 188,123.76 is: 282,054.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,910.40 : 637,070.16 = 188,123.76 : x
  2. Step 2: Convert to fraction form
    424,910.40/637,070.16 = 188,123.76/x
  3. Step 3: Cross multiply
    424,910.40x = 637,070.16 × 188,123.76
  4. Step 4: Simplify right side
    424,910.40x = 119,848,033,883.00
  5. Step 5: Solve for x
    x = 119,848,033,883.00/424,910.40
  6. Step 6: Final answer
    x = 282,054.84

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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.