Home / 312,434.43-431,157.36-169,191.19

Finding the Fourth Proportional to 312,434.43, 431,157.36 and 169,191.19

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Solution

The fourth proportional to 312,434.43, 431,157.36 and 169,191.19 is: 233,482.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,434.43 : 431,157.36 = 169,191.19 : x
  2. Step 2: Convert to fraction form
    312,434.43/431,157.36 = 169,191.19/x
  3. Step 3: Cross multiply
    312,434.43x = 431,157.36 × 169,191.19
  4. Step 4: Simplify right side
    312,434.43x = 72,948,026,815.66
  5. Step 5: Solve for x
    x = 72,948,026,815.66/312,434.43
  6. Step 6: Final answer
    x = 233,482.68

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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.