Home / 312,475.19-431,215.63-169,235.24

Finding the Fourth Proportional to 312,475.19, 431,215.63 and 169,235.24

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Solution

The fourth proportional to 312,475.19, 431,215.63 and 169,235.24 is: 233,544.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,475.19 : 431,215.63 = 169,235.24 : x
  2. Step 2: Convert to fraction form
    312,475.19/431,215.63 = 169,235.24/x
  3. Step 3: Cross multiply
    312,475.19x = 431,215.63 × 169,235.24
  4. Step 4: Simplify right side
    312,475.19x = 72,976,878,055.64
  5. Step 5: Solve for x
    x = 72,976,878,055.64/312,475.19
  6. Step 6: Final answer
    x = 233,544.56

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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.