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Finding the Fourth Proportional to 247,165.68, 341,075.40 and 139,729.32

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Solution

The fourth proportional to 247,165.68, 341,075.40 and 139,729.32 is: 192,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,165.68 : 341,075.40 = 139,729.32 : x
  2. Step 2: Convert to fraction form
    247,165.68/341,075.40 = 139,729.32/x
  3. Step 3: Cross multiply
    247,165.68x = 341,075.40 × 139,729.32
  4. Step 4: Simplify right side
    247,165.68x = 47,658,233,710.73
  5. Step 5: Solve for x
    x = 47,658,233,710.73/247,165.68
  6. Step 6: Final answer
    x = 192,818.98

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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.