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Finding the Fourth Proportional to 342,014.40, 472,294.80 and 229,165.20

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Solution

The fourth proportional to 342,014.40, 472,294.80 and 229,165.20 is: 316,458.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,014.40 : 472,294.80 = 229,165.20 : x
  2. Step 2: Convert to fraction form
    342,014.40/472,294.80 = 229,165.20/x
  3. Step 3: Cross multiply
    342,014.40x = 472,294.80 × 229,165.20
  4. Step 4: Simplify right side
    342,014.40x = 108,233,532,300.96
  5. Step 5: Solve for x
    x = 108,233,532,300.96/342,014.40
  6. Step 6: Final answer
    x = 316,458.99

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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.