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Finding the Fourth Proportional to 346,667.80, 520,050.30 and 136,256.80

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Solution

The fourth proportional to 346,667.80, 520,050.30 and 136,256.80 is: 204,404.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,667.80 : 520,050.30 = 136,256.80 : x
  2. Step 2: Convert to fraction form
    346,667.80/520,050.30 = 136,256.80/x
  3. Step 3: Cross multiply
    346,667.80x = 520,050.30 × 136,256.80
  4. Step 4: Simplify right side
    346,667.80x = 70,860,389,717.04
  5. Step 5: Solve for x
    x = 70,860,389,717.04/346,667.80
  6. Step 6: Final answer
    x = 204,404.30

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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.