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Finding the Fourth Proportional to 186,378.51, 279,528.08 and 53,223.42

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Solution

The fourth proportional to 186,378.51, 279,528.08 and 53,223.42 is: 79,823.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,378.51 : 279,528.08 = 53,223.42 : x
  2. Step 2: Convert to fraction form
    186,378.51/279,528.08 = 53,223.42/x
  3. Step 3: Cross multiply
    186,378.51x = 279,528.08 × 53,223.42
  4. Step 4: Simplify right side
    186,378.51x = 14,877,440,137.52
  5. Step 5: Solve for x
    x = 14,877,440,137.52/186,378.51
  6. Step 6: Final answer
    x = 79,823.80

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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.