Home / 430,156.38-645,202.14-174,005.22

Finding the Fourth Proportional to 430,156.38, 645,202.14 and 174,005.22

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Solution

The fourth proportional to 430,156.38, 645,202.14 and 174,005.22 is: 260,994.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,156.38 : 645,202.14 = 174,005.22 : x
  2. Step 2: Convert to fraction form
    430,156.38/645,202.14 = 174,005.22/x
  3. Step 3: Cross multiply
    430,156.38x = 645,202.14 × 174,005.22
  4. Step 4: Simplify right side
    430,156.38x = 112,268,540,315.17
  5. Step 5: Solve for x
    x = 112,268,540,315.17/430,156.38
  6. Step 6: Final answer
    x = 260,994.71

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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.