Home / 430,835.20-646,281.60-146,521.60

Finding the Fourth Proportional to 430,835.20, 646,281.60 and 146,521.60

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Solution

The fourth proportional to 430,835.20, 646,281.60 and 146,521.60 is: 219,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,835.20 : 646,281.60 = 146,521.60 : x
  2. Step 2: Convert to fraction form
    430,835.20/646,281.60 = 146,521.60/x
  3. Step 3: Cross multiply
    430,835.20x = 646,281.60 × 146,521.60
  4. Step 4: Simplify right side
    430,835.20x = 94,694,214,082.56
  5. Step 5: Solve for x
    x = 94,694,214,082.56/430,835.20
  6. Step 6: Final answer
    x = 219,792.19

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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.