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Finding the Fourth Proportional to 296,913.84, 445,364.29 and 72,275.46

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Solution

The fourth proportional to 296,913.84, 445,364.29 and 72,275.46 is: 108,411.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,913.84 : 445,364.29 = 72,275.46 : x
  2. Step 2: Convert to fraction form
    296,913.84/445,364.29 = 72,275.46/x
  3. Step 3: Cross multiply
    296,913.84x = 445,364.29 × 72,275.46
  4. Step 4: Simplify right side
    296,913.84x = 32,188,908,927.32
  5. Step 5: Solve for x
    x = 32,188,908,927.32/296,913.84
  6. Step 6: Final answer
    x = 108,411.62

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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.