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Finding the Fourth Proportional to 307,211.60, 460,817.40 and 282,328.40

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Solution

The fourth proportional to 307,211.60, 460,817.40 and 282,328.40 is: 423,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,211.60 : 460,817.40 = 282,328.40 : x
  2. Step 2: Convert to fraction form
    307,211.60/460,817.40 = 282,328.40/x
  3. Step 3: Cross multiply
    307,211.60x = 460,817.40 × 282,328.40
  4. Step 4: Simplify right side
    307,211.60x = 130,101,839,234.16
  5. Step 5: Solve for x
    x = 130,101,839,234.16/307,211.60
  6. Step 6: Final answer
    x = 423,492.60

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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.