Home / 307,128.04-460,728.98-290,331.88

Finding the Fourth Proportional to 307,128.04, 460,728.98 and 290,331.88

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Solution

The fourth proportional to 307,128.04, 460,728.98 and 290,331.88 is: 435,532.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,128.04 : 460,728.98 = 290,331.88 : x
  2. Step 2: Convert to fraction form
    307,128.04/460,728.98 = 290,331.88/x
  3. Step 3: Cross multiply
    307,128.04x = 460,728.98 × 290,331.88
  4. Step 4: Simplify right side
    307,128.04x = 133,764,310,933.88
  5. Step 5: Solve for x
    x = 133,764,310,933.88/307,128.04
  6. Step 6: Final answer
    x = 435,532.72

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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.