Home / 293,623.60-440,435.40-72,007.60

Finding the Fourth Proportional to 293,623.60, 440,435.40 and 72,007.60

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Solution

The fourth proportional to 293,623.60, 440,435.40 and 72,007.60 is: 108,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,623.60 : 440,435.40 = 72,007.60 : x
  2. Step 2: Convert to fraction form
    293,623.60/440,435.40 = 72,007.60/x
  3. Step 3: Cross multiply
    293,623.60x = 440,435.40 × 72,007.60
  4. Step 4: Simplify right side
    293,623.60x = 31,714,696,109.04
  5. Step 5: Solve for x
    x = 31,714,696,109.04/293,623.60
  6. Step 6: Final answer
    x = 108,011.40

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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.