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Finding the Fourth Proportional to 318,342.69, 439,303.59 and 175,102.65

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Solution

The fourth proportional to 318,342.69, 439,303.59 and 175,102.65 is: 241,636.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,342.69 : 439,303.59 = 175,102.65 : x
  2. Step 2: Convert to fraction form
    318,342.69/439,303.59 = 175,102.65/x
  3. Step 3: Cross multiply
    318,342.69x = 439,303.59 × 175,102.65
  4. Step 4: Simplify right side
    318,342.69x = 76,923,222,763.51
  5. Step 5: Solve for x
    x = 76,923,222,763.51/318,342.69
  6. Step 6: Final answer
    x = 241,636.53

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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.