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Finding the Fourth Proportional to 446,348.72, 615,970.68 and 245,143.28

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Solution

The fourth proportional to 446,348.72, 615,970.68 and 245,143.28 is: 338,302.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,348.72 : 615,970.68 = 245,143.28 : x
  2. Step 2: Convert to fraction form
    446,348.72/615,970.68 = 245,143.28/x
  3. Step 3: Cross multiply
    446,348.72x = 615,970.68 × 245,143.28
  4. Step 4: Simplify right side
    446,348.72x = 151,001,072,879.03
  5. Step 5: Solve for x
    x = 151,001,072,879.03/446,348.72
  6. Step 6: Final answer
    x = 338,302.91

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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.