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Finding the Fourth Proportional to 345,030.94, 476,193.59 and 207,219.16

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Solution

The fourth proportional to 345,030.94, 476,193.59 and 207,219.16 is: 285,993.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,030.94 : 476,193.59 = 207,219.16 : x
  2. Step 2: Convert to fraction form
    345,030.94/476,193.59 = 207,219.16/x
  3. Step 3: Cross multiply
    345,030.94x = 476,193.59 × 207,219.16
  4. Step 4: Simplify right side
    345,030.94x = 98,676,435,717.18
  5. Step 5: Solve for x
    x = 98,676,435,717.18/345,030.94
  6. Step 6: Final answer
    x = 285,993.01

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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.