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Finding the Fourth Proportional to 347,308.77, 478,826.64 and 250,431.55

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Solution

The fourth proportional to 347,308.77, 478,826.64 and 250,431.55 is: 345,264.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,308.77 : 478,826.64 = 250,431.55 : x
  2. Step 2: Convert to fraction form
    347,308.77/478,826.64 = 250,431.55/x
  3. Step 3: Cross multiply
    347,308.77x = 478,826.64 × 250,431.55
  4. Step 4: Simplify right side
    347,308.77x = 119,913,297,636.49
  5. Step 5: Solve for x
    x = 119,913,297,636.49/347,308.77
  6. Step 6: Final answer
    x = 345,264.24

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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.