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Finding the Fourth Proportional to 422,653.32, 583,275.90 and 231,666.72

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Solution

The fourth proportional to 422,653.32, 583,275.90 and 231,666.72 is: 319,707.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,653.32 : 583,275.90 = 231,666.72 : x
  2. Step 2: Convert to fraction form
    422,653.32/583,275.90 = 231,666.72/x
  3. Step 3: Cross multiply
    422,653.32x = 583,275.90 × 231,666.72
  4. Step 4: Simplify right side
    422,653.32x = 135,125,614,608.05
  5. Step 5: Solve for x
    x = 135,125,614,608.05/422,653.32
  6. Step 6: Final answer
    x = 319,707.92

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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.