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Finding the Fourth Proportional to 453,245.40, 625,479.90 and 249,317.21

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Solution

The fourth proportional to 453,245.40, 625,479.90 and 249,317.21 is: 344,058.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,245.40 : 625,479.90 = 249,317.21 : x
  2. Step 2: Convert to fraction form
    453,245.40/625,479.90 = 249,317.21/x
  3. Step 3: Cross multiply
    453,245.40x = 625,479.90 × 249,317.21
  4. Step 4: Simplify right side
    453,245.40x = 155,942,904,678.04
  5. Step 5: Solve for x
    x = 155,942,904,678.04/453,245.40
  6. Step 6: Final answer
    x = 344,058.44

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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.