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Finding the Fourth Proportional to 401,045, 553,389.38 and 239,841.16

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Solution

The fourth proportional to 401,045, 553,389.38 and 239,841.16 is: 330,949.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,045 : 553,389.38 = 239,841.16 : x
  2. Step 2: Convert to fraction form
    401,045/553,389.38 = 239,841.16/x
  3. Step 3: Cross multiply
    401,045x = 553,389.38 × 239,841.16
  4. Step 4: Simplify right side
    401,045x = 132,725,550,830.88
  5. Step 5: Solve for x
    x = 132,725,550,830.88/401,045
  6. Step 6: Final answer
    x = 330,949.27

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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.