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Finding the Fourth Proportional to 342,804.80, 514,207.20 and 335,806.40

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Solution

The fourth proportional to 342,804.80, 514,207.20 and 335,806.40 is: 503,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,804.80 : 514,207.20 = 335,806.40 : x
  2. Step 2: Convert to fraction form
    342,804.80/514,207.20 = 335,806.40/x
  3. Step 3: Cross multiply
    342,804.80x = 514,207.20 × 335,806.40
  4. Step 4: Simplify right side
    342,804.80x = 172,674,068,686.08
  5. Step 5: Solve for x
    x = 172,674,068,686.08/342,804.80
  6. Step 6: Final answer
    x = 503,709.60

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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.