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Finding the Fourth Proportional to 320,146.02, 480,302.06 and 170,263.06

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Solution

The fourth proportional to 320,146.02, 480,302.06 and 170,263.06 is: 255,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,146.02 : 480,302.06 = 170,263.06 : x
  2. Step 2: Convert to fraction form
    320,146.02/480,302.06 = 170,263.06/x
  3. Step 3: Cross multiply
    320,146.02x = 480,302.06 × 170,263.06
  4. Step 4: Simplify right side
    320,146.02x = 81,777,698,459.90
  5. Step 5: Solve for x
    x = 81,777,698,459.90/320,146.02
  6. Step 6: Final answer
    x = 255,438.75

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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.