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Finding the Fourth Proportional to 317,381.02, 438,014.20 and 174,168.98

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Solution

The fourth proportional to 317,381.02, 438,014.20 and 174,168.98 is: 240,368.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,381.02 : 438,014.20 = 174,168.98 : x
  2. Step 2: Convert to fraction form
    317,381.02/438,014.20 = 174,168.98/x
  3. Step 3: Cross multiply
    317,381.02x = 438,014.20 × 174,168.98
  4. Step 4: Simplify right side
    317,381.02x = 76,288,486,439.52
  5. Step 5: Solve for x
    x = 76,288,486,439.52/317,381.02
  6. Step 6: Final answer
    x = 240,368.77

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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.