Home / 438,022.18-604,434.40-247,082.50

Finding the Fourth Proportional to 438,022.18, 604,434.40 and 247,082.50

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Solution

The fourth proportional to 438,022.18, 604,434.40 and 247,082.50 is: 340,953.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,022.18 : 604,434.40 = 247,082.50 : x
  2. Step 2: Convert to fraction form
    438,022.18/604,434.40 = 247,082.50/x
  3. Step 3: Cross multiply
    438,022.18x = 604,434.40 × 247,082.50
  4. Step 4: Simplify right side
    438,022.18x = 149,345,162,638
  5. Step 5: Solve for x
    x = 149,345,162,638/438,022.18
  6. Step 6: Final answer
    x = 340,953.43

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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.