Home / 400,823.07-553,130.28-219,534.95

Finding the Fourth Proportional to 400,823.07, 553,130.28 and 219,534.95

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Solution

The fourth proportional to 400,823.07, 553,130.28 and 219,534.95 is: 302,955.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,823.07 : 553,130.28 = 219,534.95 : x
  2. Step 2: Convert to fraction form
    400,823.07/553,130.28 = 219,534.95/x
  3. Step 3: Cross multiply
    400,823.07x = 553,130.28 × 219,534.95
  4. Step 4: Simplify right side
    400,823.07x = 121,431,425,597.64
  5. Step 5: Solve for x
    x = 121,431,425,597.64/400,823.07
  6. Step 6: Final answer
    x = 302,955.18

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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.