Home / 297,290.12-446,003.29-128,838.70

Finding the Fourth Proportional to 297,290.12, 446,003.29 and 128,838.70

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Solution

The fourth proportional to 297,290.12, 446,003.29 and 128,838.70 is: 193,287.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,290.12 : 446,003.29 = 128,838.70 : x
  2. Step 2: Convert to fraction form
    297,290.12/446,003.29 = 128,838.70/x
  3. Step 3: Cross multiply
    297,290.12x = 446,003.29 × 128,838.70
  4. Step 4: Simplify right side
    297,290.12x = 57,462,484,079.32
  5. Step 5: Solve for x
    x = 57,462,484,079.32/297,290.12
  6. Step 6: Final answer
    x = 193,287.57

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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.