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Finding the Fourth Proportional to 287,714.70, 432,025.65 and 169,476.30

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Solution

The fourth proportional to 287,714.70, 432,025.65 and 169,476.30 is: 254,481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,714.70 : 432,025.65 = 169,476.30 : x
  2. Step 2: Convert to fraction form
    287,714.70/432,025.65 = 169,476.30/x
  3. Step 3: Cross multiply
    287,714.70x = 432,025.65 × 169,476.30
  4. Step 4: Simplify right side
    287,714.70x = 73,218,108,667.10
  5. Step 5: Solve for x
    x = 73,218,108,667.10/287,714.70
  6. Step 6: Final answer
    x = 254,481.64

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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.