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Finding the Fourth Proportional to 313,037.61, 431,988.84 and 169,795.59

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Solution

The fourth proportional to 313,037.61, 431,988.84 and 169,795.59 is: 234,316.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,037.61 : 431,988.84 = 169,795.59 : x
  2. Step 2: Convert to fraction form
    313,037.61/431,988.84 = 169,795.59/x
  3. Step 3: Cross multiply
    313,037.61x = 431,988.84 × 169,795.59
  4. Step 4: Simplify right side
    313,037.61x = 73,349,799,961.22
  5. Step 5: Solve for x
    x = 73,349,799,961.22/313,037.61
  6. Step 6: Final answer
    x = 234,316.25

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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.