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Finding the Fourth Proportional to 280,086.84, 420,130.35 and 93,098.34

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Solution

The fourth proportional to 280,086.84, 420,130.35 and 93,098.34 is: 139,647.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,086.84 : 420,130.35 = 93,098.34 : x
  2. Step 2: Convert to fraction form
    280,086.84/420,130.35 = 93,098.34/x
  3. Step 3: Cross multiply
    280,086.84x = 420,130.35 × 93,098.34
  4. Step 4: Simplify right side
    280,086.84x = 39,113,438,168.62
  5. Step 5: Solve for x
    x = 39,113,438,168.62/280,086.84
  6. Step 6: Final answer
    x = 139,647.54

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1.5x scale

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.