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Finding the Fourth Proportional to 268,977.51, 403,401.53 and 79,386.68

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Solution

The fourth proportional to 268,977.51, 403,401.53 and 79,386.68 is: 119,060.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,977.51 : 403,401.53 = 79,386.68 : x
  2. Step 2: Convert to fraction form
    268,977.51/403,401.53 = 79,386.68/x
  3. Step 3: Cross multiply
    268,977.51x = 403,401.53 × 79,386.68
  4. Step 4: Simplify right side
    268,977.51x = 32,024,709,380.59
  5. Step 5: Solve for x
    x = 32,024,709,380.59/268,977.51
  6. Step 6: Final answer
    x = 119,060.92

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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.