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Finding the Fourth Proportional to 507,380.16, 761,009.76 and 133,432.32

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Solution

The fourth proportional to 507,380.16, 761,009.76 and 133,432.32 is: 200,132.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,380.16 : 761,009.76 = 133,432.32 : x
  2. Step 2: Convert to fraction form
    507,380.16/761,009.76 = 133,432.32/x
  3. Step 3: Cross multiply
    507,380.16x = 761,009.76 × 133,432.32
  4. Step 4: Simplify right side
    507,380.16x = 101,543,297,819.44
  5. Step 5: Solve for x
    x = 101,543,297,819.44/507,380.16
  6. Step 6: Final answer
    x = 200,132.57

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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.