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Finding the Fourth Proportional to 247,307.87, 341,292.60 and 139,875.81

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Solution

The fourth proportional to 247,307.87, 341,292.60 and 139,875.81 is: 193,033.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,307.87 : 341,292.60 = 139,875.81 : x
  2. Step 2: Convert to fraction form
    247,307.87/341,292.60 = 139,875.81/x
  3. Step 3: Cross multiply
    247,307.87x = 341,292.60 × 139,875.81
  4. Step 4: Simplify right side
    247,307.87x = 47,738,578,872.01
  5. Step 5: Solve for x
    x = 47,738,578,872.01/247,307.87
  6. Step 6: Final answer
    x = 193,033.00

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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.