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Finding the Fourth Proportional to 152,465.67, 228,908 and 77,636.11

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Solution

The fourth proportional to 152,465.67, 228,908 and 77,636.11 is: 116,560.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,465.67 : 228,908 = 77,636.11 : x
  2. Step 2: Convert to fraction form
    152,465.67/228,908 = 77,636.11/x
  3. Step 3: Cross multiply
    152,465.67x = 228,908 × 77,636.11
  4. Step 4: Simplify right side
    152,465.67x = 17,771,526,667.88
  5. Step 5: Solve for x
    x = 17,771,526,667.88/152,465.67
  6. Step 6: Final answer
    x = 116,560.84

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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.