Home / 430,500.13-645,756.40-150,017.38

Finding the Fourth Proportional to 430,500.13, 645,756.40 and 150,017.38

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Solution

The fourth proportional to 430,500.13, 645,756.40 and 150,017.38 is: 225,028.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,500.13 : 645,756.40 = 150,017.38 : x
  2. Step 2: Convert to fraction form
    430,500.13/645,756.40 = 150,017.38/x
  3. Step 3: Cross multiply
    430,500.13x = 645,756.40 × 150,017.38
  4. Step 4: Simplify right side
    430,500.13x = 96,874,682,727.46
  5. Step 5: Solve for x
    x = 96,874,682,727.46/430,500.13
  6. Step 6: Final answer
    x = 225,028.23

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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.