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Finding the Fourth Proportional to 342,465.80, 514,281.90 and 243,321.80

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Solution

The fourth proportional to 342,465.80, 514,281.90 and 243,321.80 is: 365,397.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,465.80 : 514,281.90 = 243,321.80 : x
  2. Step 2: Convert to fraction form
    342,465.80/514,281.90 = 243,321.80/x
  3. Step 3: Cross multiply
    342,465.80x = 514,281.90 × 243,321.80
  4. Step 4: Simplify right side
    342,465.80x = 125,135,997,615.42
  5. Step 5: Solve for x
    x = 125,135,997,615.42/342,465.80
  6. Step 6: Final answer
    x = 365,397.06

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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.