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Finding the Fourth Proportional to 152,490.66, 210,437.64 and 84,508.77

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Solution

The fourth proportional to 152,490.66, 210,437.64 and 84,508.77 is: 116,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,490.66 : 210,437.64 = 84,508.77 : x
  2. Step 2: Convert to fraction form
    152,490.66/210,437.64 = 84,508.77/x
  3. Step 3: Cross multiply
    152,490.66x = 210,437.64 × 84,508.77
  4. Step 4: Simplify right side
    152,490.66x = 17,783,826,118.10
  5. Step 5: Solve for x
    x = 17,783,826,118.10/152,490.66
  6. Step 6: Final answer
    x = 116,622.40

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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.