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Finding the Fourth Proportional to 145,492.54, 218,248.03 and 45,656.67

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Solution

The fourth proportional to 145,492.54, 218,248.03 and 45,656.67 is: 68,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,492.54 : 218,248.03 = 45,656.67 : x
  2. Step 2: Convert to fraction form
    145,492.54/218,248.03 = 45,656.67/x
  3. Step 3: Cross multiply
    145,492.54x = 218,248.03 × 45,656.67
  4. Step 4: Simplify right side
    145,492.54x = 9,964,478,169.72
  5. Step 5: Solve for x
    x = 9,964,478,169.72/145,492.54
  6. Step 6: Final answer
    x = 68,487.90

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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.