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Finding the Fourth Proportional to 346,885.60, 520,328.40 and 262,904.80

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Solution

The fourth proportional to 346,885.60, 520,328.40 and 262,904.80 is: 394,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,885.60 : 520,328.40 = 262,904.80 : x
  2. Step 2: Convert to fraction form
    346,885.60/520,328.40 = 262,904.80/x
  3. Step 3: Cross multiply
    346,885.60x = 520,328.40 × 262,904.80
  4. Step 4: Simplify right side
    346,885.60x = 136,796,833,936.32
  5. Step 5: Solve for x
    x = 136,796,833,936.32/346,885.60
  6. Step 6: Final answer
    x = 394,357.20

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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.