Home / 430,532.14-645,850.05-142,353.58

Finding the Fourth Proportional to 430,532.14, 645,850.05 and 142,353.58

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Solution

The fourth proportional to 430,532.14, 645,850.05 and 142,353.58 is: 213,547.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,532.14 : 645,850.05 = 142,353.58 : x
  2. Step 2: Convert to fraction form
    430,532.14/645,850.05 = 142,353.58/x
  3. Step 3: Cross multiply
    430,532.14x = 645,850.05 × 142,353.58
  4. Step 4: Simplify right side
    430,532.14x = 91,939,066,760.68
  5. Step 5: Solve for x
    x = 91,939,066,760.68/430,532.14
  6. Step 6: Final answer
    x = 213,547.51

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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.