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Finding the Fourth Proportional to 287,674.36, 397,037.40 and 173,068.84

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Solution

The fourth proportional to 287,674.36, 397,037.40 and 173,068.84 is: 238,863.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,674.36 : 397,037.40 = 173,068.84 : x
  2. Step 2: Convert to fraction form
    287,674.36/397,037.40 = 173,068.84/x
  3. Step 3: Cross multiply
    287,674.36x = 397,037.40 × 173,068.84
  4. Step 4: Simplify right side
    287,674.36x = 68,714,802,254.62
  5. Step 5: Solve for x
    x = 68,714,802,254.62/287,674.36
  6. Step 6: Final answer
    x = 238,863.14

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1.5x scale

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.