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Finding the Fourth Proportional to 268,605.77, 370,685.70 and 147,756.42

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Solution

The fourth proportional to 268,605.77, 370,685.70 and 147,756.42 is: 203,909.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,605.77 : 370,685.70 = 147,756.42 : x
  2. Step 2: Convert to fraction form
    268,605.77/370,685.70 = 147,756.42/x
  3. Step 3: Cross multiply
    268,605.77x = 370,685.70 × 147,756.42
  4. Step 4: Simplify right side
    268,605.77x = 54,771,191,977.19
  5. Step 5: Solve for x
    x = 54,771,191,977.19/268,605.77
  6. Step 6: Final answer
    x = 203,909.22

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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.