Home / 288,287.25-432,432.41-189,075.70

Finding the Fourth Proportional to 288,287.25, 432,432.41 and 189,075.70

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Solution

The fourth proportional to 288,287.25, 432,432.41 and 189,075.70 is: 283,614.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,287.25 : 432,432.41 = 189,075.70 : x
  2. Step 2: Convert to fraction form
    288,287.25/432,432.41 = 189,075.70/x
  3. Step 3: Cross multiply
    288,287.25x = 432,432.41 × 189,075.70
  4. Step 4: Simplify right side
    288,287.25x = 81,762,461,282.15
  5. Step 5: Solve for x
    x = 81,762,461,282.15/288,287.25
  6. Step 6: Final answer
    x = 283,614.56

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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.