Home / 330,193.20-493,977.60-286,307.40

Finding the Fourth Proportional to 330,193.20, 493,977.60 and 286,307.40

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Solution

The fourth proportional to 330,193.20, 493,977.60 and 286,307.40 is: 428,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,193.20 : 493,977.60 = 286,307.40 : x
  2. Step 2: Convert to fraction form
    330,193.20/493,977.60 = 286,307.40/x
  3. Step 3: Cross multiply
    330,193.20x = 493,977.60 × 286,307.40
  4. Step 4: Simplify right side
    330,193.20x = 141,429,442,314.24
  5. Step 5: Solve for x
    x = 141,429,442,314.24/330,193.20
  6. Step 6: Final answer
    x = 428,323.30

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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.