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Finding the Fourth Proportional to 279,309.66, 418,715.31 and 232,310.32

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Solution

The fourth proportional to 279,309.66, 418,715.31 and 232,310.32 is: 348,258.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,309.66 : 418,715.31 = 232,310.32 : x
  2. Step 2: Convert to fraction form
    279,309.66/418,715.31 = 232,310.32/x
  3. Step 3: Cross multiply
    279,309.66x = 418,715.31 × 232,310.32
  4. Step 4: Simplify right side
    279,309.66x = 97,271,887,655.00
  5. Step 5: Solve for x
    x = 97,271,887,655.00/279,309.66
  6. Step 6: Final answer
    x = 348,258.23

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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.