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Finding the Fourth Proportional to 307,773.80, 460,610.40 and 257,910.20

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Solution

The fourth proportional to 307,773.80, 460,610.40 and 257,910.20 is: 385,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,773.80 : 460,610.40 = 257,910.20 : x
  2. Step 2: Convert to fraction form
    307,773.80/460,610.40 = 257,910.20/x
  3. Step 3: Cross multiply
    307,773.80x = 460,610.40 × 257,910.20
  4. Step 4: Simplify right side
    307,773.80x = 118,796,120,386.08
  5. Step 5: Solve for x
    x = 118,796,120,386.08/307,773.80
  6. Step 6: Final answer
    x = 385,985.16

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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.