Home / 385,017.06-531,314.73-215,266.98

Finding the Fourth Proportional to 385,017.06, 531,314.73 and 215,266.98

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Solution

The fourth proportional to 385,017.06, 531,314.73 and 215,266.98 is: 297,063.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,017.06 : 531,314.73 = 215,266.98 : x
  2. Step 2: Convert to fraction form
    385,017.06/531,314.73 = 215,266.98/x
  3. Step 3: Cross multiply
    385,017.06x = 531,314.73 × 215,266.98
  4. Step 4: Simplify right side
    385,017.06x = 114,374,517,356.62
  5. Step 5: Solve for x
    x = 114,374,517,356.62/385,017.06
  6. Step 6: Final answer
    x = 297,063.51

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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.