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Finding the Fourth Proportional to 556,269.76, 834,436.90 and 214,715.14

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Solution

The fourth proportional to 556,269.76, 834,436.90 and 214,715.14 is: 322,085.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,269.76 : 834,436.90 = 214,715.14 : x
  2. Step 2: Convert to fraction form
    556,269.76/834,436.90 = 214,715.14/x
  3. Step 3: Cross multiply
    556,269.76x = 834,436.90 × 214,715.14
  4. Step 4: Simplify right side
    556,269.76x = 179,166,235,804.67
  5. Step 5: Solve for x
    x = 179,166,235,804.67/556,269.76
  6. Step 6: Final answer
    x = 322,085.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.