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Finding the Fourth Proportional to 247,307.85, 341,284.86 and 139,875.60

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Solution

The fourth proportional to 247,307.85, 341,284.86 and 139,875.60 is: 193,028.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,307.85 : 341,284.86 = 139,875.60 : x
  2. Step 2: Convert to fraction form
    247,307.85/341,284.86 = 139,875.60/x
  3. Step 3: Cross multiply
    247,307.85x = 341,284.86 × 139,875.60
  4. Step 4: Simplify right side
    247,307.85x = 47,737,424,563.42
  5. Step 5: Solve for x
    x = 47,737,424,563.42/247,307.85
  6. Step 6: Final answer
    x = 193,028.34

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1.5x scale

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.