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Finding the Fourth Proportional to 308,607.36, 462,434.76 and 208,374.72

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Solution

The fourth proportional to 308,607.36, 462,434.76 and 208,374.72 is: 312,240.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,607.36 : 462,434.76 = 208,374.72 : x
  2. Step 2: Convert to fraction form
    308,607.36/462,434.76 = 208,374.72/x
  3. Step 3: Cross multiply
    308,607.36x = 462,434.76 × 208,374.72
  4. Step 4: Simplify right side
    308,607.36x = 96,359,713,633.27
  5. Step 5: Solve for x
    x = 96,359,713,633.27/308,607.36
  6. Step 6: Final answer
    x = 312,240.49

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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.