Home / 346,780.20-520,170.30-97,429.80

Finding the Fourth Proportional to 346,780.20, 520,170.30 and 97,429.80

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Solution

The fourth proportional to 346,780.20, 520,170.30 and 97,429.80 is: 146,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,780.20 : 520,170.30 = 97,429.80 : x
  2. Step 2: Convert to fraction form
    346,780.20/520,170.30 = 97,429.80/x
  3. Step 3: Cross multiply
    346,780.20x = 520,170.30 × 97,429.80
  4. Step 4: Simplify right side
    346,780.20x = 50,680,088,294.94
  5. Step 5: Solve for x
    x = 50,680,088,294.94/346,780.20
  6. Step 6: Final answer
    x = 146,144.70

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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.