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Finding the Fourth Proportional to 309,312.48, 426,839.04 and 175,176.48

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Solution

The fourth proportional to 309,312.48, 426,839.04 and 175,176.48 is: 241,736.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,312.48 : 426,839.04 = 175,176.48 : x
  2. Step 2: Convert to fraction form
    309,312.48/426,839.04 = 175,176.48/x
  3. Step 3: Cross multiply
    309,312.48x = 426,839.04 × 175,176.48
  4. Step 4: Simplify right side
    309,312.48x = 74,772,160,553.78
  5. Step 5: Solve for x
    x = 74,772,160,553.78/309,312.48
  6. Step 6: Final answer
    x = 241,736.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.