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Finding the Fourth Proportional to 256,463.47, 354,018.36 and 229,558.51

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Solution

The fourth proportional to 256,463.47, 354,018.36 and 229,558.51 is: 316,879.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,463.47 : 354,018.36 = 229,558.51 : x
  2. Step 2: Convert to fraction form
    256,463.47/354,018.36 = 229,558.51/x
  3. Step 3: Cross multiply
    256,463.47x = 354,018.36 × 229,558.51
  4. Step 4: Simplify right side
    256,463.47x = 81,267,927,234.24
  5. Step 5: Solve for x
    x = 81,267,927,234.24/256,463.47
  6. Step 6: Final answer
    x = 316,879.15

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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.