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Finding the Fourth Proportional to 310,984.11, 429,159.87 and 175,020.75

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Solution

The fourth proportional to 310,984.11, 429,159.87 and 175,020.75 is: 241,529.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,984.11 : 429,159.87 = 175,020.75 : x
  2. Step 2: Convert to fraction form
    310,984.11/429,159.87 = 175,020.75/x
  3. Step 3: Cross multiply
    310,984.11x = 429,159.87 × 175,020.75
  4. Step 4: Simplify right side
    310,984.11x = 75,111,882,317.30
  5. Step 5: Solve for x
    x = 75,111,882,317.30/310,984.11
  6. Step 6: Final answer
    x = 241,529.65

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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.