Home / 288,799.80-432,908.10-131,141.40

Finding the Fourth Proportional to 288,799.80, 432,908.10 and 131,141.40

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Solution

The fourth proportional to 288,799.80, 432,908.10 and 131,141.40 is: 196,579.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,799.80 : 432,908.10 = 131,141.40 : x
  2. Step 2: Convert to fraction form
    288,799.80/432,908.10 = 131,141.40/x
  3. Step 3: Cross multiply
    288,799.80x = 432,908.10 × 131,141.40
  4. Step 4: Simplify right side
    288,799.80x = 56,772,174,305.34
  5. Step 5: Solve for x
    x = 56,772,174,305.34/288,799.80
  6. Step 6: Final answer
    x = 196,579.69

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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.