Home / 259,561.08-389,342.34-72,574.20

Finding the Fourth Proportional to 259,561.08, 389,342.34 and 72,574.20

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Solution

The fourth proportional to 259,561.08, 389,342.34 and 72,574.20 is: 108,861.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,561.08 : 389,342.34 = 72,574.20 : x
  2. Step 2: Convert to fraction form
    259,561.08/389,342.34 = 72,574.20/x
  3. Step 3: Cross multiply
    259,561.08x = 389,342.34 × 72,574.20
  4. Step 4: Simplify right side
    259,561.08x = 28,256,208,851.63
  5. Step 5: Solve for x
    x = 28,256,208,851.63/259,561.08
  6. Step 6: Final answer
    x = 108,861.50

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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.