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Finding the Fourth Proportional to 292,630.40, 403,859.64 and 211,025.72

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Solution

The fourth proportional to 292,630.40, 403,859.64 and 211,025.72 is: 291,236.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,630.40 : 403,859.64 = 211,025.72 : x
  2. Step 2: Convert to fraction form
    292,630.40/403,859.64 = 211,025.72/x
  3. Step 3: Cross multiply
    292,630.40x = 403,859.64 × 211,025.72
  4. Step 4: Simplify right side
    292,630.40x = 85,224,771,309.94
  5. Step 5: Solve for x
    x = 85,224,771,309.94/292,630.40
  6. Step 6: Final answer
    x = 291,236.90

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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.