Home / 286,217.20-429,539.10-109,070.20

Finding the Fourth Proportional to 286,217.20, 429,539.10 and 109,070.20

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Solution

The fourth proportional to 286,217.20, 429,539.10 and 109,070.20 is: 163,686.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,217.20 : 429,539.10 = 109,070.20 : x
  2. Step 2: Convert to fraction form
    286,217.20/429,539.10 = 109,070.20/x
  3. Step 3: Cross multiply
    286,217.20x = 429,539.10 × 109,070.20
  4. Step 4: Simplify right side
    286,217.20x = 46,849,915,544.82
  5. Step 5: Solve for x
    x = 46,849,915,544.82/286,217.20
  6. Step 6: Final answer
    x = 163,686.58

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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.