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Finding the Fourth Proportional to 313,730.88, 432,948.30 and 170,490.60

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Solution

The fourth proportional to 313,730.88, 432,948.30 and 170,490.60 is: 235,276.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,730.88 : 432,948.30 = 170,490.60 : x
  2. Step 2: Convert to fraction form
    313,730.88/432,948.30 = 170,490.60/x
  3. Step 3: Cross multiply
    313,730.88x = 432,948.30 × 170,490.60
  4. Step 4: Simplify right side
    313,730.88x = 73,813,615,435.98
  5. Step 5: Solve for x
    x = 73,813,615,435.98/313,730.88
  6. Step 6: Final answer
    x = 235,276.86

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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.