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Finding the Fourth Proportional to 313,625.32, 432,866.03 and 186,276.31

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Solution

The fourth proportional to 313,625.32, 432,866.03 and 186,276.31 is: 257,098.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,625.32 : 432,866.03 = 186,276.31 : x
  2. Step 2: Convert to fraction form
    313,625.32/432,866.03 = 186,276.31/x
  3. Step 3: Cross multiply
    313,625.32x = 432,866.03 × 186,276.31
  4. Step 4: Simplify right side
    313,625.32x = 80,632,684,779.20
  5. Step 5: Solve for x
    x = 80,632,684,779.20/313,625.32
  6. Step 6: Final answer
    x = 257,098.77

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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.