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Finding the Fourth Proportional to 401,301.16, 553,852.02 and 248,388.40

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Solution

The fourth proportional to 401,301.16, 553,852.02 and 248,388.40 is: 342,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,301.16 : 553,852.02 = 248,388.40 : x
  2. Step 2: Convert to fraction form
    401,301.16/553,852.02 = 248,388.40/x
  3. Step 3: Cross multiply
    401,301.16x = 553,852.02 × 248,388.40
  4. Step 4: Simplify right side
    401,301.16x = 137,570,417,084.57
  5. Step 5: Solve for x
    x = 137,570,417,084.57/401,301.16
  6. Step 6: Final answer
    x = 342,810.91

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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.