Home / 287,396.40-430,828.92-146,845.20

Finding the Fourth Proportional to 287,396.40, 430,828.92 and 146,845.20

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Solution

The fourth proportional to 287,396.40, 430,828.92 and 146,845.20 is: 220,132.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,396.40 : 430,828.92 = 146,845.20 : x
  2. Step 2: Convert to fraction form
    287,396.40/430,828.92 = 146,845.20/x
  3. Step 3: Cross multiply
    287,396.40x = 430,828.92 × 146,845.20
  4. Step 4: Simplify right side
    287,396.40x = 63,265,158,923.18
  5. Step 5: Solve for x
    x = 63,265,158,923.18/287,396.40
  6. Step 6: Final answer
    x = 220,132.05

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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.