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Finding the Fourth Proportional to 361,256.09, 498,060.77 and 310,810.68

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Solution

The fourth proportional to 361,256.09, 498,060.77 and 310,810.68 is: 428,512.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,256.09 : 498,060.77 = 310,810.68 : x
  2. Step 2: Convert to fraction form
    361,256.09/498,060.77 = 310,810.68/x
  3. Step 3: Cross multiply
    361,256.09x = 498,060.77 × 310,810.68
  4. Step 4: Simplify right side
    361,256.09x = 154,802,605,050.97
  5. Step 5: Solve for x
    x = 154,802,605,050.97/361,256.09
  6. Step 6: Final answer
    x = 428,512.10

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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.