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Finding the Fourth Proportional to 375,710.37, 563,303.07 and 139,022.34

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Solution

The fourth proportional to 375,710.37, 563,303.07 and 139,022.34 is: 208,436.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,710.37 : 563,303.07 = 139,022.34 : x
  2. Step 2: Convert to fraction form
    375,710.37/563,303.07 = 139,022.34/x
  3. Step 3: Cross multiply
    375,710.37x = 563,303.07 × 139,022.34
  4. Step 4: Simplify right side
    375,710.37x = 78,311,710,920.58
  5. Step 5: Solve for x
    x = 78,311,710,920.58/375,710.37
  6. Step 6: Final answer
    x = 208,436.38

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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.