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Finding the Fourth Proportional to 368,899.16, 509,082.57 and 207,756.95

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Solution

The fourth proportional to 368,899.16, 509,082.57 and 207,756.95 is: 286,705.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,899.16 : 509,082.57 = 207,756.95 : x
  2. Step 2: Convert to fraction form
    368,899.16/509,082.57 = 207,756.95/x
  3. Step 3: Cross multiply
    368,899.16x = 509,082.57 × 207,756.95
  4. Step 4: Simplify right side
    368,899.16x = 105,765,439,495.95
  5. Step 5: Solve for x
    x = 105,765,439,495.95/368,899.16
  6. Step 6: Final answer
    x = 286,705.56

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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.