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Finding the Fourth Proportional to 401,045.04, 553,442.08 and 239,906.88

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Solution

The fourth proportional to 401,045.04, 553,442.08 and 239,906.88 is: 331,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,045.04 : 553,442.08 = 239,906.88 : x
  2. Step 2: Convert to fraction form
    401,045.04/553,442.08 = 239,906.88/x
  3. Step 3: Cross multiply
    401,045.04x = 553,442.08 × 239,906.88
  4. Step 4: Simplify right side
    401,045.04x = 132,774,562,673.51
  5. Step 5: Solve for x
    x = 132,774,562,673.51/401,045.04
  6. Step 6: Final answer
    x = 331,071.45

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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.