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Finding the Fourth Proportional to 507,656.80, 761,485.20 and 133,717.60

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Solution

The fourth proportional to 507,656.80, 761,485.20 and 133,717.60 is: 200,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,656.80 : 761,485.20 = 133,717.60 : x
  2. Step 2: Convert to fraction form
    507,656.80/761,485.20 = 133,717.60/x
  3. Step 3: Cross multiply
    507,656.80x = 761,485.20 × 133,717.60
  4. Step 4: Simplify right side
    507,656.80x = 101,823,973,379.52
  5. Step 5: Solve for x
    x = 101,823,973,379.52/507,656.80
  6. Step 6: Final answer
    x = 200,576.40

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Similar ratio
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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.