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Finding the Fourth Proportional to 343,366.90, 514,904.55 and 165,928.30

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Solution

The fourth proportional to 343,366.90, 514,904.55 and 165,928.30 is: 248,821.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,366.90 : 514,904.55 = 165,928.30 : x
  2. Step 2: Convert to fraction form
    343,366.90/514,904.55 = 165,928.30/x
  3. Step 3: Cross multiply
    343,366.90x = 514,904.55 × 165,928.30
  4. Step 4: Simplify right side
    343,366.90x = 85,437,236,643.77
  5. Step 5: Solve for x
    x = 85,437,236,643.77/343,366.90
  6. Step 6: Final answer
    x = 248,821.99

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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.