Home / 430,130.85-645,273.90-177,270.84

Finding the Fourth Proportional to 430,130.85, 645,273.90 and 177,270.84

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Solution

The fourth proportional to 430,130.85, 645,273.90 and 177,270.84 is: 265,938.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,130.85 : 645,273.90 = 177,270.84 : x
  2. Step 2: Convert to fraction form
    430,130.85/645,273.90 = 177,270.84/x
  3. Step 3: Cross multiply
    430,130.85x = 645,273.90 × 177,270.84
  4. Step 4: Simplify right side
    430,130.85x = 114,388,246,283.08
  5. Step 5: Solve for x
    x = 114,388,246,283.08/430,130.85
  6. Step 6: Final answer
    x = 265,938.25

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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.