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Finding the Fourth Proportional to 462,515.87, 638,190.29 and 258,501.58

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Solution

The fourth proportional to 462,515.87, 638,190.29 and 258,501.58 is: 356,686.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,515.87 : 638,190.29 = 258,501.58 : x
  2. Step 2: Convert to fraction form
    462,515.87/638,190.29 = 258,501.58/x
  3. Step 3: Cross multiply
    462,515.87x = 638,190.29 × 258,501.58
  4. Step 4: Simplify right side
    462,515.87x = 164,973,197,356.44
  5. Step 5: Solve for x
    x = 164,973,197,356.44/462,515.87
  6. Step 6: Final answer
    x = 356,686.56

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1.5x scale

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.