Home / 312,742.17-431,582.40-169,502.22

Finding the Fourth Proportional to 312,742.17, 431,582.40 and 169,502.22

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Solution

The fourth proportional to 312,742.17, 431,582.40 and 169,502.22 is: 233,912.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,742.17 : 431,582.40 = 169,502.22 : x
  2. Step 2: Convert to fraction form
    312,742.17/431,582.40 = 169,502.22/x
  3. Step 3: Cross multiply
    312,742.17x = 431,582.40 × 169,502.22
  4. Step 4: Simplify right side
    312,742.17x = 73,154,174,912.93
  5. Step 5: Solve for x
    x = 73,154,174,912.93/312,742.17
  6. Step 6: Final answer
    x = 233,912.09

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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.