Home / 385,424.27-531,822.05-242,082.22

Finding the Fourth Proportional to 385,424.27, 531,822.05 and 242,082.22

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Solution

The fourth proportional to 385,424.27, 531,822.05 and 242,082.22 is: 334,033.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,424.27 : 531,822.05 = 242,082.22 : x
  2. Step 2: Convert to fraction form
    385,424.27/531,822.05 = 242,082.22/x
  3. Step 3: Cross multiply
    385,424.27x = 531,822.05 × 242,082.22
  4. Step 4: Simplify right side
    385,424.27x = 128,744,660,876.79
  5. Step 5: Solve for x
    x = 128,744,660,876.79/385,424.27
  6. Step 6: Final answer
    x = 334,033.61

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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.