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Finding the Fourth Proportional to 235,573.93, 325,088.67 and 128,144.89

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Solution

The fourth proportional to 235,573.93, 325,088.67 and 128,144.89 is: 176,838.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,573.93 : 325,088.67 = 128,144.89 : x
  2. Step 2: Convert to fraction form
    235,573.93/325,088.67 = 128,144.89/x
  3. Step 3: Cross multiply
    235,573.93x = 325,088.67 × 128,144.89
  4. Step 4: Simplify right side
    235,573.93x = 41,658,451,857.40
  5. Step 5: Solve for x
    x = 41,658,451,857.40/235,573.93
  6. Step 6: Final answer
    x = 176,838.12

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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.