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Finding the Fourth Proportional to 288,615.94, 432,980.61 and 88,902.34

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Solution

The fourth proportional to 288,615.94, 432,980.61 and 88,902.34 is: 133,370.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,615.94 : 432,980.61 = 88,902.34 : x
  2. Step 2: Convert to fraction form
    288,615.94/432,980.61 = 88,902.34/x
  3. Step 3: Cross multiply
    288,615.94x = 432,980.61 × 88,902.34
  4. Step 4: Simplify right side
    288,615.94x = 38,492,989,403.63
  5. Step 5: Solve for x
    x = 38,492,989,403.63/288,615.94
  6. Step 6: Final answer
    x = 133,370.98

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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.