Home / 430,060.41-645,148.94-149,541.21

Finding the Fourth Proportional to 430,060.41, 645,148.94 and 149,541.21

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Solution

The fourth proportional to 430,060.41, 645,148.94 and 149,541.21 is: 224,332.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,060.41 : 645,148.94 = 149,541.21 : x
  2. Step 2: Convert to fraction form
    430,060.41/645,148.94 = 149,541.21/x
  3. Step 3: Cross multiply
    430,060.41x = 645,148.94 × 149,541.21
  4. Step 4: Simplify right side
    430,060.41x = 96,476,352,370.11
  5. Step 5: Solve for x
    x = 96,476,352,370.11/430,060.41
  6. Step 6: Final answer
    x = 224,332.09

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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.