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Finding the Fourth Proportional to 507,555.60, 761,272.60 and 133,608.08

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Solution

The fourth proportional to 507,555.60, 761,272.60 and 133,608.08 is: 200,396.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,555.60 : 761,272.60 = 133,608.08 : x
  2. Step 2: Convert to fraction form
    507,555.60/761,272.60 = 133,608.08/x
  3. Step 3: Cross multiply
    507,555.60x = 761,272.60 × 133,608.08
  4. Step 4: Simplify right side
    507,555.60x = 101,712,170,442.61
  5. Step 5: Solve for x
    x = 101,712,170,442.61/507,555.60
  6. Step 6: Final answer
    x = 200,396.12

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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.