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Finding the Fourth Proportional to 152,123.40, 228,324.60 and 77,295.60

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Solution

The fourth proportional to 152,123.40, 228,324.60 and 77,295.60 is: 116,014.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,123.40 : 228,324.60 = 77,295.60 : x
  2. Step 2: Convert to fraction form
    152,123.40/228,324.60 = 77,295.60/x
  3. Step 3: Cross multiply
    152,123.40x = 228,324.60 × 77,295.60
  4. Step 4: Simplify right side
    152,123.40x = 17,648,486,951.76
  5. Step 5: Solve for x
    x = 17,648,486,951.76/152,123.40
  6. Step 6: Final answer
    x = 116,014.28

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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.