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Finding the Fourth Proportional to 152,490.63, 210,437.60 and 84,508.75

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Solution

The fourth proportional to 152,490.63, 210,437.60 and 84,508.75 is: 116,622.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,490.63 : 210,437.60 = 84,508.75 : x
  2. Step 2: Convert to fraction form
    152,490.63/210,437.60 = 84,508.75/x
  3. Step 3: Cross multiply
    152,490.63x = 210,437.60 × 84,508.75
  4. Step 4: Simplify right side
    152,490.63x = 17,783,818,529
  5. Step 5: Solve for x
    x = 17,783,818,529/152,490.63
  6. Step 6: Final answer
    x = 116,622.37

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1.5x scale

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.