Home / 279,053.20-385,088.84-151,732

Finding the Fourth Proportional to 279,053.20, 385,088.84 and 151,732

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Solution

The fourth proportional to 279,053.20, 385,088.84 and 151,732 is: 209,387.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,053.20 : 385,088.84 = 151,732 : x
  2. Step 2: Convert to fraction form
    279,053.20/385,088.84 = 151,732/x
  3. Step 3: Cross multiply
    279,053.20x = 385,088.84 × 151,732
  4. Step 4: Simplify right side
    279,053.20x = 58,430,299,870.88
  5. Step 5: Solve for x
    x = 58,430,299,870.88/279,053.20
  6. Step 6: Final answer
    x = 209,387.67

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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.