Home / 279,320.07-385,470.41-158,466.45

Finding the Fourth Proportional to 279,320.07, 385,470.41 and 158,466.45

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Solution

The fourth proportional to 279,320.07, 385,470.41 and 158,466.45 is: 218,688.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,320.07 : 385,470.41 = 158,466.45 : x
  2. Step 2: Convert to fraction form
    279,320.07/385,470.41 = 158,466.45/x
  3. Step 3: Cross multiply
    279,320.07x = 385,470.41 × 158,466.45
  4. Step 4: Simplify right side
    279,320.07x = 61,084,127,452.74
  5. Step 5: Solve for x
    x = 61,084,127,452.74/279,320.07
  6. Step 6: Final answer
    x = 218,688.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.