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Finding the Fourth Proportional to 304,538.40, 456,807.60 and 127,051.20

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Solution

The fourth proportional to 304,538.40, 456,807.60 and 127,051.20 is: 190,576.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,538.40 : 456,807.60 = 127,051.20 : x
  2. Step 2: Convert to fraction form
    304,538.40/456,807.60 = 127,051.20/x
  3. Step 3: Cross multiply
    304,538.40x = 456,807.60 × 127,051.20
  4. Step 4: Simplify right side
    304,538.40x = 58,037,953,749.12
  5. Step 5: Solve for x
    x = 58,037,953,749.12/304,538.40
  6. Step 6: Final answer
    x = 190,576.80

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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.