Home / 258,200.40-386,535.15-191,934.30

Finding the Fourth Proportional to 258,200.40, 386,535.15 and 191,934.30

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Solution

The fourth proportional to 258,200.40, 386,535.15 and 191,934.30 is: 287,332.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,200.40 : 386,535.15 = 191,934.30 : x
  2. Step 2: Convert to fraction form
    258,200.40/386,535.15 = 191,934.30/x
  3. Step 3: Cross multiply
    258,200.40x = 386,535.15 × 191,934.30
  4. Step 4: Simplify right side
    258,200.40x = 74,189,353,440.65
  5. Step 5: Solve for x
    x = 74,189,353,440.65/258,200.40
  6. Step 6: Final answer
    x = 287,332.45

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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.