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Finding the Fourth Proportional to 318,034, 438,868.36 and 174,794.16

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Solution

The fourth proportional to 318,034, 438,868.36 and 174,794.16 is: 241,205.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,034 : 438,868.36 = 174,794.16 : x
  2. Step 2: Convert to fraction form
    318,034/438,868.36 = 174,794.16/x
  3. Step 3: Cross multiply
    318,034x = 438,868.36 × 174,794.16
  4. Step 4: Simplify right side
    318,034x = 76,711,626,336.78
  5. Step 5: Solve for x
    x = 76,711,626,336.78/318,034
  6. Step 6: Final answer
    x = 241,205.74

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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.