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Finding the Fourth Proportional to 369,671.73, 509,953.04 and 321,164.66

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Solution

The fourth proportional to 369,671.73, 509,953.04 and 321,164.66 is: 443,038.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,671.73 : 509,953.04 = 321,164.66 : x
  2. Step 2: Convert to fraction form
    369,671.73/509,953.04 = 321,164.66/x
  3. Step 3: Cross multiply
    369,671.73x = 509,953.04 × 321,164.66
  4. Step 4: Simplify right side
    369,671.73x = 163,778,894,707.57
  5. Step 5: Solve for x
    x = 163,778,894,707.57/369,671.73
  6. Step 6: Final answer
    x = 443,038.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.