Home / 268,148.20-401,966.30-99,623.40

Finding the Fourth Proportional to 268,148.20, 401,966.30 and 99,623.40

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Solution

The fourth proportional to 268,148.20, 401,966.30 and 99,623.40 is: 149,339.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,148.20 : 401,966.30 = 99,623.40 : x
  2. Step 2: Convert to fraction form
    268,148.20/401,966.30 = 99,623.40/x
  3. Step 3: Cross multiply
    268,148.20x = 401,966.30 × 99,623.40
  4. Step 4: Simplify right side
    268,148.20x = 40,045,249,491.42
  5. Step 5: Solve for x
    x = 40,045,249,491.42/268,148.20
  6. Step 6: Final answer
    x = 149,339.99

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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.