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Finding the Fourth Proportional to 268,044.04, 402,022.28 and 90,547.12

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Solution

The fourth proportional to 268,044.04, 402,022.28 and 90,547.12 is: 135,805.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,044.04 : 402,022.28 = 90,547.12 : x
  2. Step 2: Convert to fraction form
    268,044.04/402,022.28 = 90,547.12/x
  3. Step 3: Cross multiply
    268,044.04x = 402,022.28 × 90,547.12
  4. Step 4: Simplify right side
    268,044.04x = 36,401,959,629.83
  5. Step 5: Solve for x
    x = 36,401,959,629.83/268,044.04
  6. Step 6: Final answer
    x = 135,805.89

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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.