Home / 330,844.80-496,267.20-315,638.40

Finding the Fourth Proportional to 330,844.80, 496,267.20 and 315,638.40

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Solution

The fourth proportional to 330,844.80, 496,267.20 and 315,638.40 is: 473,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,844.80 : 496,267.20 = 315,638.40 : x
  2. Step 2: Convert to fraction form
    330,844.80/496,267.20 = 315,638.40/x
  3. Step 3: Cross multiply
    330,844.80x = 496,267.20 × 315,638.40
  4. Step 4: Simplify right side
    330,844.80x = 156,640,984,980.48
  5. Step 5: Solve for x
    x = 156,640,984,980.48/330,844.80
  6. Step 6: Final answer
    x = 473,457.60

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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.