Home / 259,563.08-389,345.34-72,576.20

Finding the Fourth Proportional to 259,563.08, 389,345.34 and 72,576.20

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Solution

The fourth proportional to 259,563.08, 389,345.34 and 72,576.20 is: 108,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,563.08 : 389,345.34 = 72,576.20 : x
  2. Step 2: Convert to fraction form
    259,563.08/389,345.34 = 72,576.20/x
  3. Step 3: Cross multiply
    259,563.08x = 389,345.34 × 72,576.20
  4. Step 4: Simplify right side
    259,563.08x = 28,257,205,264.91
  5. Step 5: Solve for x
    x = 28,257,205,264.91/259,563.08
  6. Step 6: Final answer
    x = 108,864.50

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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.