Home / 198,018.60-273,088.44-155,503.32

Finding the Fourth Proportional to 198,018.60, 273,088.44 and 155,503.32

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Solution

The fourth proportional to 198,018.60, 273,088.44 and 155,503.32 is: 214,455.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,018.60 : 273,088.44 = 155,503.32 : x
  2. Step 2: Convert to fraction form
    198,018.60/273,088.44 = 155,503.32/x
  3. Step 3: Cross multiply
    198,018.60x = 273,088.44 × 155,503.32
  4. Step 4: Simplify right side
    198,018.60x = 42,466,159,073.62
  5. Step 5: Solve for x
    x = 42,466,159,073.62/198,018.60
  6. Step 6: Final answer
    x = 214,455.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.