Home / 279,635.10-385,898.31-152,309.58

Finding the Fourth Proportional to 279,635.10, 385,898.31 and 152,309.58

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Solution

The fourth proportional to 279,635.10, 385,898.31 and 152,309.58 is: 210,188.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,635.10 : 385,898.31 = 152,309.58 : x
  2. Step 2: Convert to fraction form
    279,635.10/385,898.31 = 152,309.58/x
  3. Step 3: Cross multiply
    279,635.10x = 385,898.31 × 152,309.58
  4. Step 4: Simplify right side
    279,635.10x = 58,776,009,518.81
  5. Step 5: Solve for x
    x = 58,776,009,518.81/279,635.10
  6. Step 6: Final answer
    x = 210,188.24

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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.