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Finding the Fourth Proportional to 313,582.80, 432,745.04 and 170,339.84

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Solution

The fourth proportional to 313,582.80, 432,745.04 and 170,339.84 is: 235,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,582.80 : 432,745.04 = 170,339.84 : x
  2. Step 2: Convert to fraction form
    313,582.80/432,745.04 = 170,339.84/x
  3. Step 3: Cross multiply
    313,582.80x = 432,745.04 × 170,339.84
  4. Step 4: Simplify right side
    313,582.80x = 73,713,720,874.39
  5. Step 5: Solve for x
    x = 73,713,720,874.39/313,582.80
  6. Step 6: Final answer
    x = 235,069.40

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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.