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Finding the Fourth Proportional to 342,810.80, 514,216.20 and 335,812.40

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Solution

The fourth proportional to 342,810.80, 514,216.20 and 335,812.40 is: 503,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,810.80 : 514,216.20 = 335,812.40 : x
  2. Step 2: Convert to fraction form
    342,810.80/514,216.20 = 335,812.40/x
  3. Step 3: Cross multiply
    342,810.80x = 514,216.20 × 335,812.40
  4. Step 4: Simplify right side
    342,810.80x = 172,680,176,240.88
  5. Step 5: Solve for x
    x = 172,680,176,240.88/342,810.80
  6. Step 6: Final answer
    x = 503,718.60

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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.