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Finding the Fourth Proportional to 288,556.86, 432,881.81 and 88,877.16

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Solution

The fourth proportional to 288,556.86, 432,881.81 and 88,877.16 is: 133,330.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,556.86 : 432,881.81 = 88,877.16 : x
  2. Step 2: Convert to fraction form
    288,556.86/432,881.81 = 88,877.16/x
  3. Step 3: Cross multiply
    288,556.86x = 432,881.81 × 88,877.16
  4. Step 4: Simplify right side
    288,556.86x = 38,473,305,777.36
  5. Step 5: Solve for x
    x = 38,473,305,777.36/288,556.86
  6. Step 6: Final answer
    x = 133,330.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.