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Finding the Fourth Proportional to 336,903.40, 504,188.70 and 308,909.80

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Solution

The fourth proportional to 336,903.40, 504,188.70 and 308,909.80 is: 462,295.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,903.40 : 504,188.70 = 308,909.80 : x
  2. Step 2: Convert to fraction form
    336,903.40/504,188.70 = 308,909.80/x
  3. Step 3: Cross multiply
    336,903.40x = 504,188.70 × 308,909.80
  4. Step 4: Simplify right side
    336,903.40x = 155,748,830,479.26
  5. Step 5: Solve for x
    x = 155,748,830,479.26/336,903.40
  6. Step 6: Final answer
    x = 462,295.22

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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.