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Finding the Fourth Proportional to 320,562.54, 480,703.55 and 152,131.14

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Solution

The fourth proportional to 320,562.54, 480,703.55 and 152,131.14 is: 228,130.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,562.54 : 480,703.55 = 152,131.14 : x
  2. Step 2: Convert to fraction form
    320,562.54/480,703.55 = 152,131.14/x
  3. Step 3: Cross multiply
    320,562.54x = 480,703.55 × 152,131.14
  4. Step 4: Simplify right side
    320,562.54x = 73,129,978,302.89
  5. Step 5: Solve for x
    x = 73,129,978,302.89/320,562.54
  6. Step 6: Final answer
    x = 228,130.14

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1.5x scale

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.