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Finding the Fourth Proportional to 401,315.42, 553,820.67 and 220,026.91

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Solution

The fourth proportional to 401,315.42, 553,820.67 and 220,026.91 is: 303,640.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,315.42 : 553,820.67 = 220,026.91 : x
  2. Step 2: Convert to fraction form
    401,315.42/553,820.67 = 220,026.91/x
  3. Step 3: Cross multiply
    401,315.42x = 553,820.67 × 220,026.91
  4. Step 4: Simplify right side
    401,315.42x = 121,855,450,714.23
  5. Step 5: Solve for x
    x = 121,855,450,714.23/401,315.42
  6. Step 6: Final answer
    x = 303,640.09

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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.