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Finding the Fourth Proportional to 218,969.88, 302,260.32 and 170,475.72

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Solution

The fourth proportional to 218,969.88, 302,260.32 and 170,475.72 is: 235,320.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,969.88 : 302,260.32 = 170,475.72 : x
  2. Step 2: Convert to fraction form
    218,969.88/302,260.32 = 170,475.72/x
  3. Step 3: Cross multiply
    218,969.88x = 302,260.32 × 170,475.72
  4. Step 4: Simplify right side
    218,969.88x = 51,528,045,679.43
  5. Step 5: Solve for x
    x = 51,528,045,679.43/218,969.88
  6. Step 6: Final answer
    x = 235,320.24

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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.