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Finding the Fourth Proportional to 453,378.42, 625,661.28 and 249,428.85

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Solution

The fourth proportional to 453,378.42, 625,661.28 and 249,428.85 is: 344,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,378.42 : 625,661.28 = 249,428.85 : x
  2. Step 2: Convert to fraction form
    453,378.42/625,661.28 = 249,428.85/x
  3. Step 3: Cross multiply
    453,378.42x = 625,661.28 × 249,428.85
  4. Step 4: Simplify right side
    453,378.42x = 156,057,973,559.93
  5. Step 5: Solve for x
    x = 156,057,973,559.93/453,378.42
  6. Step 6: Final answer
    x = 344,211.30

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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.