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Finding the Fourth Proportional to 256,045.73, 353,509.54 and 229,141.98

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Solution

The fourth proportional to 256,045.73, 353,509.54 and 229,141.98 is: 316,364.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,045.73 : 353,509.54 = 229,141.98 : x
  2. Step 2: Convert to fraction form
    256,045.73/353,509.54 = 229,141.98/x
  3. Step 3: Cross multiply
    256,045.73x = 353,509.54 × 229,141.98
  4. Step 4: Simplify right side
    256,045.73x = 81,003,874,798.78
  5. Step 5: Solve for x
    x = 81,003,874,798.78/256,045.73
  6. Step 6: Final answer
    x = 316,364.88

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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.