Home / 346,456.20-520,073.10-267,918.60

Finding the Fourth Proportional to 346,456.20, 520,073.10 and 267,918.60

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Solution

The fourth proportional to 346,456.20, 520,073.10 and 267,918.60 is: 402,178.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,456.20 : 520,073.10 = 267,918.60 : x
  2. Step 2: Convert to fraction form
    346,456.20/520,073.10 = 267,918.60/x
  3. Step 3: Cross multiply
    346,456.20x = 520,073.10 × 267,918.60
  4. Step 4: Simplify right side
    346,456.20x = 139,337,256,849.66
  5. Step 5: Solve for x
    x = 139,337,256,849.66/346,456.20
  6. Step 6: Final answer
    x = 402,178.56

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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.