Home / 304,631.60-456,947.40-79,977.20

Finding the Fourth Proportional to 304,631.60, 456,947.40 and 79,977.20

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Solution

The fourth proportional to 304,631.60, 456,947.40 and 79,977.20 is: 119,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,631.60 : 456,947.40 = 79,977.20 : x
  2. Step 2: Convert to fraction form
    304,631.60/456,947.40 = 79,977.20/x
  3. Step 3: Cross multiply
    304,631.60x = 456,947.40 × 79,977.20
  4. Step 4: Simplify right side
    304,631.60x = 36,545,373,599.28
  5. Step 5: Solve for x
    x = 36,545,373,599.28/304,631.60
  6. Step 6: Final answer
    x = 119,965.80

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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.