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Finding the Fourth Proportional to 346,321.60, 519,352.80 and 121,595.20

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Solution

The fourth proportional to 346,321.60, 519,352.80 and 121,595.20 is: 182,347.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,321.60 : 519,352.80 = 121,595.20 : x
  2. Step 2: Convert to fraction form
    346,321.60/519,352.80 = 121,595.20/x
  3. Step 3: Cross multiply
    346,321.60x = 519,352.80 × 121,595.20
  4. Step 4: Simplify right side
    346,321.60x = 63,150,807,586.56
  5. Step 5: Solve for x
    x = 63,150,807,586.56/346,321.60
  6. Step 6: Final answer
    x = 182,347.30

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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.