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Finding the Fourth Proportional to 342,669.60, 514,004.40 and 230,695.20

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Solution

The fourth proportional to 342,669.60, 514,004.40 and 230,695.20 is: 346,042.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,669.60 : 514,004.40 = 230,695.20 : x
  2. Step 2: Convert to fraction form
    342,669.60/514,004.40 = 230,695.20/x
  3. Step 3: Cross multiply
    342,669.60x = 514,004.40 × 230,695.20
  4. Step 4: Simplify right side
    342,669.60x = 118,578,347,858.88
  5. Step 5: Solve for x
    x = 118,578,347,858.88/342,669.60
  6. Step 6: Final answer
    x = 346,042.80

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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.