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Finding the Fourth Proportional to 425,290.80, 586,641.78 and 253,093.26

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Solution

The fourth proportional to 425,290.80, 586,641.78 and 253,093.26 is: 349,114.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,290.80 : 586,641.78 = 253,093.26 : x
  2. Step 2: Convert to fraction form
    425,290.80/586,641.78 = 253,093.26/x
  3. Step 3: Cross multiply
    425,290.80x = 586,641.78 × 253,093.26
  4. Step 4: Simplify right side
    425,290.80x = 148,475,080,552.40
  5. Step 5: Solve for x
    x = 148,475,080,552.40/425,290.80
  6. Step 6: Final answer
    x = 349,114.25

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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.