Home / 401,326.41-553,809.28-229,210.54

Finding the Fourth Proportional to 401,326.41, 553,809.28 and 229,210.54

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Solution

The fourth proportional to 401,326.41, 553,809.28 and 229,210.54 is: 316,298.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,326.41 : 553,809.28 = 229,210.54 : x
  2. Step 2: Convert to fraction form
    401,326.41/553,809.28 = 229,210.54/x
  3. Step 3: Cross multiply
    401,326.41x = 553,809.28 × 229,210.54
  4. Step 4: Simplify right side
    401,326.41x = 126,938,924,125.81
  5. Step 5: Solve for x
    x = 126,938,924,125.81/401,326.41
  6. Step 6: Final answer
    x = 316,298.46

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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.