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Finding the Fourth Proportional to 235,482.72, 324,967.68 and 128,053.92

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Solution

The fourth proportional to 235,482.72, 324,967.68 and 128,053.92 is: 176,715.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,482.72 : 324,967.68 = 128,053.92 : x
  2. Step 2: Convert to fraction form
    235,482.72/324,967.68 = 128,053.92/x
  3. Step 3: Cross multiply
    235,482.72x = 324,967.68 × 128,053.92
  4. Step 4: Simplify right side
    235,482.72x = 41,613,385,297.31
  5. Step 5: Solve for x
    x = 41,613,385,297.31/235,482.72
  6. Step 6: Final answer
    x = 176,715.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.