Home / 259,161.08-388,475.28-99,199.50

Finding the Fourth Proportional to 259,161.08, 388,475.28 and 99,199.50

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Solution

The fourth proportional to 259,161.08, 388,475.28 and 99,199.50 is: 148,697.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,161.08 : 388,475.28 = 99,199.50 : x
  2. Step 2: Convert to fraction form
    259,161.08/388,475.28 = 99,199.50/x
  3. Step 3: Cross multiply
    259,161.08x = 388,475.28 × 99,199.50
  4. Step 4: Simplify right side
    259,161.08x = 38,536,553,538.36
  5. Step 5: Solve for x
    x = 38,536,553,538.36/259,161.08
  6. Step 6: Final answer
    x = 148,697.31

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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.