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Finding the Fourth Proportional to 323,430.30, 485,145.45 and 248,694.30

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Solution

The fourth proportional to 323,430.30, 485,145.45 and 248,694.30 is: 373,041.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,430.30 : 485,145.45 = 248,694.30 : x
  2. Step 2: Convert to fraction form
    323,430.30/485,145.45 = 248,694.30/x
  3. Step 3: Cross multiply
    323,430.30x = 485,145.45 × 248,694.30
  4. Step 4: Simplify right side
    323,430.30x = 120,652,908,085.94
  5. Step 5: Solve for x
    x = 120,652,908,085.94/323,430.30
  6. Step 6: Final answer
    x = 373,041.45

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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.