Home / 288,280.05-432,421.62-189,068.51

Finding the Fourth Proportional to 288,280.05, 432,421.62 and 189,068.51

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Solution

The fourth proportional to 288,280.05, 432,421.62 and 189,068.51 is: 283,603.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,280.05 : 432,421.62 = 189,068.51 : x
  2. Step 2: Convert to fraction form
    288,280.05/432,421.62 = 189,068.51/x
  3. Step 3: Cross multiply
    288,280.05x = 432,421.62 × 189,068.51
  4. Step 4: Simplify right side
    288,280.05x = 81,757,311,520.90
  5. Step 5: Solve for x
    x = 81,757,311,520.90/288,280.05
  6. Step 6: Final answer
    x = 283,603.78

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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.