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Finding the Fourth Proportional to 186,487.84, 279,732 and 142,365.08

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Solution

The fourth proportional to 186,487.84, 279,732 and 142,365.08 is: 213,547.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,487.84 : 279,732 = 142,365.08 : x
  2. Step 2: Convert to fraction form
    186,487.84/279,732 = 142,365.08/x
  3. Step 3: Cross multiply
    186,487.84x = 279,732 × 142,365.08
  4. Step 4: Simplify right side
    186,487.84x = 39,824,068,558.56
  5. Step 5: Solve for x
    x = 39,824,068,558.56/186,487.84
  6. Step 6: Final answer
    x = 213,547.80

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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.