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Finding the Fourth Proportional to 157,437.60, 220,879.20 and 157,437.60

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Solution

The fourth proportional to 157,437.60, 220,879.20 and 157,437.60 is: 220,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,437.60 : 220,879.20 = 157,437.60 : x
  2. Step 2: Convert to fraction form
    157,437.60/220,879.20 = 157,437.60/x
  3. Step 3: Cross multiply
    157,437.60x = 220,879.20 × 157,437.60
  4. Step 4: Simplify right side
    157,437.60x = 34,774,691,137.92
  5. Step 5: Solve for x
    x = 34,774,691,137.92/157,437.60
  6. Step 6: Final answer
    x = 220,879.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.