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Finding the Fourth Proportional to 347,290.48, 480,137.77 and 256,502.64

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Solution

The fourth proportional to 347,290.48, 480,137.77 and 256,502.64 is: 354,621.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,290.48 : 480,137.77 = 256,502.64 : x
  2. Step 2: Convert to fraction form
    347,290.48/480,137.77 = 256,502.64/x
  3. Step 3: Cross multiply
    347,290.48x = 480,137.77 × 256,502.64
  4. Step 4: Simplify right side
    347,290.48x = 123,156,605,568.71
  5. Step 5: Solve for x
    x = 123,156,605,568.71/347,290.48
  6. Step 6: Final answer
    x = 354,621.31

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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.