Home / 320,756.85-480,995.14-152,325.45

Finding the Fourth Proportional to 320,756.85, 480,995.14 and 152,325.45

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Solution

The fourth proportional to 320,756.85, 480,995.14 and 152,325.45 is: 228,421.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,756.85 : 480,995.14 = 152,325.45 : x
  2. Step 2: Convert to fraction form
    320,756.85/480,995.14 = 152,325.45/x
  3. Step 3: Cross multiply
    320,756.85x = 480,995.14 × 152,325.45
  4. Step 4: Simplify right side
    320,756.85x = 73,267,801,148.31
  5. Step 5: Solve for x
    x = 73,267,801,148.31/320,756.85
  6. Step 6: Final answer
    x = 228,421.63

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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.