Home / 318,973.24-440,214.20-238,260.76

Finding the Fourth Proportional to 318,973.24, 440,214.20 and 238,260.76

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Solution

The fourth proportional to 318,973.24, 440,214.20 and 238,260.76 is: 328,823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,973.24 : 440,214.20 = 238,260.76 : x
  2. Step 2: Convert to fraction form
    318,973.24/440,214.20 = 238,260.76/x
  3. Step 3: Cross multiply
    318,973.24x = 440,214.20 × 238,260.76
  4. Step 4: Simplify right side
    318,973.24x = 104,885,769,854.79
  5. Step 5: Solve for x
    x = 104,885,769,854.79/318,973.24
  6. Step 6: Final answer
    x = 328,823.10

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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.