Home / 346,985.70-520,672.95-147,272.10

Finding the Fourth Proportional to 346,985.70, 520,672.95 and 147,272.10

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Solution

The fourth proportional to 346,985.70, 520,672.95 and 147,272.10 is: 220,990.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,985.70 : 520,672.95 = 147,272.10 : x
  2. Step 2: Convert to fraction form
    346,985.70/520,672.95 = 147,272.10/x
  3. Step 3: Cross multiply
    346,985.70x = 520,672.95 × 147,272.10
  4. Step 4: Simplify right side
    346,985.70x = 76,680,598,759.70
  5. Step 5: Solve for x
    x = 76,680,598,759.70/346,985.70
  6. Step 6: Final answer
    x = 220,990.66

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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.