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Finding the Fourth Proportional to 152,372.58, 210,274.71 and 84,388.02

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Solution

The fourth proportional to 152,372.58, 210,274.71 and 84,388.02 is: 116,455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,372.58 : 210,274.71 = 84,388.02 : x
  2. Step 2: Convert to fraction form
    152,372.58/210,274.71 = 84,388.02/x
  3. Step 3: Cross multiply
    152,372.58x = 210,274.71 × 84,388.02
  4. Step 4: Simplify right side
    152,372.58x = 17,744,666,432.97
  5. Step 5: Solve for x
    x = 17,744,666,432.97/152,372.58
  6. Step 6: Final answer
    x = 116,455.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.