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Finding the Fourth Proportional to 281,011.60, 420,642.60 and 272,263.60

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Solution

The fourth proportional to 281,011.60, 420,642.60 and 272,263.60 is: 407,547.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,011.60 : 420,642.60 = 272,263.60 : x
  2. Step 2: Convert to fraction form
    281,011.60/420,642.60 = 272,263.60/x
  3. Step 3: Cross multiply
    281,011.60x = 420,642.60 × 272,263.60
  4. Step 4: Simplify right side
    281,011.60x = 114,525,668,589.36
  5. Step 5: Solve for x
    x = 114,525,668,589.36/281,011.60
  6. Step 6: Final answer
    x = 407,547.83

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1.5x scale

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.