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Finding the Fourth Proportional to 318,903.33, 440,086.59 and 175,666.45

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Solution

The fourth proportional to 318,903.33, 440,086.59 and 175,666.45 is: 242,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,903.33 : 440,086.59 = 175,666.45 : x
  2. Step 2: Convert to fraction form
    318,903.33/440,086.59 = 175,666.45/x
  3. Step 3: Cross multiply
    318,903.33x = 440,086.59 × 175,666.45
  4. Step 4: Simplify right side
    318,903.33x = 77,308,447,939.17
  5. Step 5: Solve for x
    x = 77,308,447,939.17/318,903.33
  6. Step 6: Final answer
    x = 242,419.70

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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.