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Finding the Fourth Proportional to 452,502.90, 678,322.35 and 168,117.30

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Solution

The fourth proportional to 452,502.90, 678,322.35 and 168,117.30 is: 252,015.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,502.90 : 678,322.35 = 168,117.30 : x
  2. Step 2: Convert to fraction form
    452,502.90/678,322.35 = 168,117.30/x
  3. Step 3: Cross multiply
    452,502.90x = 678,322.35 × 168,117.30
  4. Step 4: Simplify right side
    452,502.90x = 114,037,722,011.66
  5. Step 5: Solve for x
    x = 114,037,722,011.66/452,502.90
  6. Step 6: Final answer
    x = 252,015.45

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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.