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Finding the Fourth Proportional to 145,492.99, 218,248.71 and 45,657.13

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Solution

The fourth proportional to 145,492.99, 218,248.71 and 45,657.13 is: 68,488.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,492.99 : 218,248.71 = 45,657.13 : x
  2. Step 2: Convert to fraction form
    145,492.99/218,248.71 = 45,657.13/x
  3. Step 3: Cross multiply
    145,492.99x = 218,248.71 × 45,657.13
  4. Step 4: Simplify right side
    145,492.99x = 9,964,608,633.56
  5. Step 5: Solve for x
    x = 9,964,608,633.56/145,492.99
  6. Step 6: Final answer
    x = 68,488.58

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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.