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Finding the Fourth Proportional to 292,096.80, 437,972.40 and 152,128.80

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Solution

The fourth proportional to 292,096.80, 437,972.40 and 152,128.80 is: 228,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,096.80 : 437,972.40 = 152,128.80 : x
  2. Step 2: Convert to fraction form
    292,096.80/437,972.40 = 152,128.80/x
  3. Step 3: Cross multiply
    292,096.80x = 437,972.40 × 152,128.80
  4. Step 4: Simplify right side
    292,096.80x = 66,628,215,645.12
  5. Step 5: Solve for x
    x = 66,628,215,645.12/292,096.80
  6. Step 6: Final answer
    x = 228,103.20

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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.