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Finding the Fourth Proportional to 342,056.28, 472,038.39 and 191,153.28

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Solution

The fourth proportional to 342,056.28, 472,038.39 and 191,153.28 is: 263,791.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,056.28 : 472,038.39 = 191,153.28 : x
  2. Step 2: Convert to fraction form
    342,056.28/472,038.39 = 191,153.28/x
  3. Step 3: Cross multiply
    342,056.28x = 472,038.39 × 191,153.28
  4. Step 4: Simplify right side
    342,056.28x = 90,231,686,534.42
  5. Step 5: Solve for x
    x = 90,231,686,534.42/342,056.28
  6. Step 6: Final answer
    x = 263,791.93

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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.