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Finding the Fourth Proportional to 450,059.03, 621,061.69 and 256,508.63

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Solution

The fourth proportional to 450,059.03, 621,061.69 and 256,508.63 is: 353,970.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,059.03 : 621,061.69 = 256,508.63 : x
  2. Step 2: Convert to fraction form
    450,059.03/621,061.69 = 256,508.63/x
  3. Step 3: Cross multiply
    450,059.03x = 621,061.69 × 256,508.63
  4. Step 4: Simplify right side
    450,059.03x = 159,307,685,120.68
  5. Step 5: Solve for x
    x = 159,307,685,120.68/450,059.03
  6. Step 6: Final answer
    x = 353,970.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.