Home / 430,137.16-645,095.03-177,489.45

Finding the Fourth Proportional to 430,137.16, 645,095.03 and 177,489.45

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Solution

The fourth proportional to 430,137.16, 645,095.03 and 177,489.45 is: 266,188.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,137.16 : 645,095.03 = 177,489.45 : x
  2. Step 2: Convert to fraction form
    430,137.16/645,095.03 = 177,489.45/x
  3. Step 3: Cross multiply
    430,137.16x = 645,095.03 × 177,489.45
  4. Step 4: Simplify right side
    430,137.16x = 114,497,561,184.99
  5. Step 5: Solve for x
    x = 114,497,561,184.99/430,137.16
  6. Step 6: Final answer
    x = 266,188.49

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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.