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Finding the Fourth Proportional to 380,560.91, 570,894.67 and 155,953.28

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Solution

The fourth proportional to 380,560.91, 570,894.67 and 155,953.28 is: 233,951.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,560.91 : 570,894.67 = 155,953.28 : x
  2. Step 2: Convert to fraction form
    380,560.91/570,894.67 = 155,953.28/x
  3. Step 3: Cross multiply
    380,560.91x = 570,894.67 × 155,953.28
  4. Step 4: Simplify right side
    380,560.91x = 89,032,893,661.49
  5. Step 5: Solve for x
    x = 89,032,893,661.49/380,560.91
  6. Step 6: Final answer
    x = 233,951.76

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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.