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Finding the Fourth Proportional to 260,509.01, 359,521.75 and 145,799.15

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Solution

The fourth proportional to 260,509.01, 359,521.75 and 145,799.15 is: 201,213.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,509.01 : 359,521.75 = 145,799.15 : x
  2. Step 2: Convert to fraction form
    260,509.01/359,521.75 = 145,799.15/x
  3. Step 3: Cross multiply
    260,509.01x = 359,521.75 × 145,799.15
  4. Step 4: Simplify right side
    260,509.01x = 52,417,965,556.51
  5. Step 5: Solve for x
    x = 52,417,965,556.51/260,509.01
  6. Step 6: Final answer
    x = 201,213.64

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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.