Home / 287,328.43-430,555.24-137,362.60

Finding the Fourth Proportional to 287,328.43, 430,555.24 and 137,362.60

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Solution

The fourth proportional to 287,328.43, 430,555.24 and 137,362.60 is: 205,834.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,328.43 : 430,555.24 = 137,362.60 : x
  2. Step 2: Convert to fraction form
    287,328.43/430,555.24 = 137,362.60/x
  3. Step 3: Cross multiply
    287,328.43x = 430,555.24 × 137,362.60
  4. Step 4: Simplify right side
    287,328.43x = 59,142,187,210.02
  5. Step 5: Solve for x
    x = 59,142,187,210.02/287,328.43
  6. Step 6: Final answer
    x = 205,834.79

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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.