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Finding the Fourth Proportional to 262,090.08, 392,493.60 and 121,888.80

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Solution

The fourth proportional to 262,090.08, 392,493.60 and 121,888.80 is: 182,534.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,090.08 : 392,493.60 = 121,888.80 : x
  2. Step 2: Convert to fraction form
    262,090.08/392,493.60 = 121,888.80/x
  3. Step 3: Cross multiply
    262,090.08x = 392,493.60 × 121,888.80
  4. Step 4: Simplify right side
    262,090.08x = 47,840,573,911.68
  5. Step 5: Solve for x
    x = 47,840,573,911.68/262,090.08
  6. Step 6: Final answer
    x = 182,534.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.