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Finding the Fourth Proportional to 369,433.77, 509,808.42 and 208,287.42

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Solution

The fourth proportional to 369,433.77, 509,808.42 and 208,287.42 is: 287,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,433.77 : 509,808.42 = 208,287.42 : x
  2. Step 2: Convert to fraction form
    369,433.77/509,808.42 = 208,287.42/x
  3. Step 3: Cross multiply
    369,433.77x = 509,808.42 × 208,287.42
  4. Step 4: Simplify right side
    369,433.77x = 106,186,680,496.08
  5. Step 5: Solve for x
    x = 106,186,680,496.08/369,433.77
  6. Step 6: Final answer
    x = 287,430.90

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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.