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Finding the Fourth Proportional to 334,861.60, 502,292.40 and 309,200.80

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Solution

The fourth proportional to 334,861.60, 502,292.40 and 309,200.80 is: 463,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,861.60 : 502,292.40 = 309,200.80 : x
  2. Step 2: Convert to fraction form
    334,861.60/502,292.40 = 309,200.80/x
  3. Step 3: Cross multiply
    334,861.60x = 502,292.40 × 309,200.80
  4. Step 4: Simplify right side
    334,861.60x = 155,309,211,913.92
  5. Step 5: Solve for x
    x = 155,309,211,913.92/334,861.60
  6. Step 6: Final answer
    x = 463,801.20

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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.