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Finding the Fourth Proportional to 346,677.30, 520,015.95 and 323,349.30

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Solution

The fourth proportional to 346,677.30, 520,015.95 and 323,349.30 is: 485,023.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,677.30 : 520,015.95 = 323,349.30 : x
  2. Step 2: Convert to fraction form
    346,677.30/520,015.95 = 323,349.30/x
  3. Step 3: Cross multiply
    346,677.30x = 520,015.95 × 323,349.30
  4. Step 4: Simplify right side
    346,677.30x = 168,146,793,421.34
  5. Step 5: Solve for x
    x = 168,146,793,421.34/346,677.30
  6. Step 6: Final answer
    x = 485,023.95

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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.