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Finding the Fourth Proportional to 172,307.94, 258,364.71 and 67,006.32

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Solution

The fourth proportional to 172,307.94, 258,364.71 and 67,006.32 is: 100,471.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,307.94 : 258,364.71 = 67,006.32 : x
  2. Step 2: Convert to fraction form
    172,307.94/258,364.71 = 67,006.32/x
  3. Step 3: Cross multiply
    172,307.94x = 258,364.71 × 67,006.32
  4. Step 4: Simplify right side
    172,307.94x = 17,312,068,434.97
  5. Step 5: Solve for x
    x = 17,312,068,434.97/172,307.94
  6. Step 6: Final answer
    x = 100,471.68

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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.