Home / 346,438.20-519,657.30-253,126.20

Finding the Fourth Proportional to 346,438.20, 519,657.30 and 253,126.20

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Solution

The fourth proportional to 346,438.20, 519,657.30 and 253,126.20 is: 379,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,438.20 : 519,657.30 = 253,126.20 : x
  2. Step 2: Convert to fraction form
    346,438.20/519,657.30 = 253,126.20/x
  3. Step 3: Cross multiply
    346,438.20x = 519,657.30 × 253,126.20
  4. Step 4: Simplify right side
    346,438.20x = 131,538,877,651.26
  5. Step 5: Solve for x
    x = 131,538,877,651.26/346,438.20
  6. Step 6: Final answer
    x = 379,689.30

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Similar ratio
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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.