Home / 300,210.30-450,370.02-142,437.27

Finding the Fourth Proportional to 300,210.30, 450,370.02 and 142,437.27

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Solution

The fourth proportional to 300,210.30, 450,370.02 and 142,437.27 is: 213,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,210.30 : 450,370.02 = 142,437.27 : x
  2. Step 2: Convert to fraction form
    300,210.30/450,370.02 = 142,437.27/x
  3. Step 3: Cross multiply
    300,210.30x = 450,370.02 × 142,437.27
  4. Step 4: Simplify right side
    300,210.30x = 64,149,476,138.65
  5. Step 5: Solve for x
    x = 64,149,476,138.65/300,210.30
  6. Step 6: Final answer
    x = 213,681.80

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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.