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Finding the Fourth Proportional to 307,220.10, 460,830.15 and 254,688.90

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Solution

The fourth proportional to 307,220.10, 460,830.15 and 254,688.90 is: 382,033.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,220.10 : 460,830.15 = 254,688.90 : x
  2. Step 2: Convert to fraction form
    307,220.10/460,830.15 = 254,688.90/x
  3. Step 3: Cross multiply
    307,220.10x = 460,830.15 × 254,688.90
  4. Step 4: Simplify right side
    307,220.10x = 117,368,323,990.34
  5. Step 5: Solve for x
    x = 117,368,323,990.34/307,220.10
  6. Step 6: Final answer
    x = 382,033.35

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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.