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Finding the Fourth Proportional to 235,678.41, 325,235.60 and 128,248.41

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Solution

The fourth proportional to 235,678.41, 325,235.60 and 128,248.41 is: 176,982.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,678.41 : 325,235.60 = 128,248.41 : x
  2. Step 2: Convert to fraction form
    235,678.41/325,235.60 = 128,248.41/x
  3. Step 3: Cross multiply
    235,678.41x = 325,235.60 × 128,248.41
  4. Step 4: Simplify right side
    235,678.41x = 41,710,950,356.12
  5. Step 5: Solve for x
    x = 41,710,950,356.12/235,678.41
  6. Step 6: Final answer
    x = 176,982.48

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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.