Home / 263,638.17-363,818.63-142,776.66

Finding the Fourth Proportional to 263,638.17, 363,818.63 and 142,776.66

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Solution

The fourth proportional to 263,638.17, 363,818.63 and 142,776.66 is: 197,030.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,638.17 : 363,818.63 = 142,776.66 : x
  2. Step 2: Convert to fraction form
    263,638.17/363,818.63 = 142,776.66/x
  3. Step 3: Cross multiply
    263,638.17x = 363,818.63 × 142,776.66
  4. Step 4: Simplify right side
    263,638.17x = 51,944,808,123.29
  5. Step 5: Solve for x
    x = 51,944,808,123.29/263,638.17
  6. Step 6: Final answer
    x = 197,030.68

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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.