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Finding the Fourth Proportional to 342,185.04, 472,225.80 and 191,288.40

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Solution

The fourth proportional to 342,185.04, 472,225.80 and 191,288.40 is: 263,983.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,185.04 : 472,225.80 = 191,288.40 : x
  2. Step 2: Convert to fraction form
    342,185.04/472,225.80 = 191,288.40/x
  3. Step 3: Cross multiply
    342,185.04x = 472,225.80 × 191,288.40
  4. Step 4: Simplify right side
    342,185.04x = 90,331,317,720.72
  5. Step 5: Solve for x
    x = 90,331,317,720.72/342,185.04
  6. Step 6: Final answer
    x = 263,983.83

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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.