Home / 293,376.40-440,356.20-143,785.60

Finding the Fourth Proportional to 293,376.40, 440,356.20 and 143,785.60

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Solution

The fourth proportional to 293,376.40, 440,356.20 and 143,785.60 is: 215,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,376.40 : 440,356.20 = 143,785.60 : x
  2. Step 2: Convert to fraction form
    293,376.40/440,356.20 = 143,785.60/x
  3. Step 3: Cross multiply
    293,376.40x = 440,356.20 × 143,785.60
  4. Step 4: Simplify right side
    293,376.40x = 63,316,880,430.72
  5. Step 5: Solve for x
    x = 63,316,880,430.72/293,376.40
  6. Step 6: Final answer
    x = 215,821.31

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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.