Home / 346,726.20-520,089.30-147,012.60

Finding the Fourth Proportional to 346,726.20, 520,089.30 and 147,012.60

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Solution

The fourth proportional to 346,726.20, 520,089.30 and 147,012.60 is: 220,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,726.20 : 520,089.30 = 147,012.60 : x
  2. Step 2: Convert to fraction form
    346,726.20/520,089.30 = 147,012.60/x
  3. Step 3: Cross multiply
    346,726.20x = 520,089.30 × 147,012.60
  4. Step 4: Simplify right side
    346,726.20x = 76,459,680,225.18
  5. Step 5: Solve for x
    x = 76,459,680,225.18/346,726.20
  6. Step 6: Final answer
    x = 220,518.90

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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.