Home / 330,849.80-496,274.70-315,643.40

Finding the Fourth Proportional to 330,849.80, 496,274.70 and 315,643.40

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Solution

The fourth proportional to 330,849.80, 496,274.70 and 315,643.40 is: 473,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,849.80 : 496,274.70 = 315,643.40 : x
  2. Step 2: Convert to fraction form
    330,849.80/496,274.70 = 315,643.40/x
  3. Step 3: Cross multiply
    330,849.80x = 496,274.70 × 315,643.40
  4. Step 4: Simplify right side
    330,849.80x = 156,645,833,641.98
  5. Step 5: Solve for x
    x = 156,645,833,641.98/330,849.80
  6. Step 6: Final answer
    x = 473,465.10

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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.