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Finding the Fourth Proportional to 346,677.60, 520,016.40 and 303,823.20

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Solution

The fourth proportional to 346,677.60, 520,016.40 and 303,823.20 is: 455,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,677.60 : 520,016.40 = 303,823.20 : x
  2. Step 2: Convert to fraction form
    346,677.60/520,016.40 = 303,823.20/x
  3. Step 3: Cross multiply
    346,677.60x = 520,016.40 × 303,823.20
  4. Step 4: Simplify right side
    346,677.60x = 157,993,046,700.48
  5. Step 5: Solve for x
    x = 157,993,046,700.48/346,677.60
  6. Step 6: Final answer
    x = 455,734.80

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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.