Home / 346,728.20-520,092.30-253,416.20

Finding the Fourth Proportional to 346,728.20, 520,092.30 and 253,416.20

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Solution

The fourth proportional to 346,728.20, 520,092.30 and 253,416.20 is: 380,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,728.20 : 520,092.30 = 253,416.20 : x
  2. Step 2: Convert to fraction form
    346,728.20/520,092.30 = 253,416.20/x
  3. Step 3: Cross multiply
    346,728.20x = 520,092.30 × 253,416.20
  4. Step 4: Simplify right side
    346,728.20x = 131,799,814,315.26
  5. Step 5: Solve for x
    x = 131,799,814,315.26/346,728.20
  6. Step 6: Final answer
    x = 380,124.30

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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.