Home / 286,521.30-428,907.15-223,535.70

Finding the Fourth Proportional to 286,521.30, 428,907.15 and 223,535.70

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Solution

The fourth proportional to 286,521.30, 428,907.15 and 223,535.70 is: 334,621.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,521.30 : 428,907.15 = 223,535.70 : x
  2. Step 2: Convert to fraction form
    286,521.30/428,907.15 = 223,535.70/x
  3. Step 3: Cross multiply
    286,521.30x = 428,907.15 × 223,535.70
  4. Step 4: Simplify right side
    286,521.30x = 95,876,060,010.26
  5. Step 5: Solve for x
    x = 95,876,060,010.26/286,521.30
  6. Step 6: Final answer
    x = 334,621.06

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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.