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Finding the Fourth Proportional to 342,142.04, 513,085.34 and 117,438.68

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Solution

The fourth proportional to 342,142.04, 513,085.34 and 117,438.68 is: 176,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,142.04 : 513,085.34 = 117,438.68 : x
  2. Step 2: Convert to fraction form
    342,142.04/513,085.34 = 117,438.68/x
  3. Step 3: Cross multiply
    342,142.04x = 513,085.34 × 117,438.68
  4. Step 4: Simplify right side
    342,142.04x = 60,256,065,056.95
  5. Step 5: Solve for x
    x = 60,256,065,056.95/342,142.04
  6. Step 6: Final answer
    x = 176,114.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.