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Finding the Fourth Proportional to 269,603.72, 404,457.40 and 103,378.76

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Solution

The fourth proportional to 269,603.72, 404,457.40 and 103,378.76 is: 155,088.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,603.72 : 404,457.40 = 103,378.76 : x
  2. Step 2: Convert to fraction form
    269,603.72/404,457.40 = 103,378.76/x
  3. Step 3: Cross multiply
    269,603.72x = 404,457.40 × 103,378.76
  4. Step 4: Simplify right side
    269,603.72x = 41,812,304,484.82
  5. Step 5: Solve for x
    x = 41,812,304,484.82/269,603.72
  6. Step 6: Final answer
    x = 155,088.01

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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.