Home / 442,070.40-662,668.20-217,246.80

Finding the Fourth Proportional to 442,070.40, 662,668.20 and 217,246.80

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Solution

The fourth proportional to 442,070.40, 662,668.20 and 217,246.80 is: 325,655.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,070.40 : 662,668.20 = 217,246.80 : x
  2. Step 2: Convert to fraction form
    442,070.40/662,668.20 = 217,246.80/x
  3. Step 3: Cross multiply
    442,070.40x = 662,668.20 × 217,246.80
  4. Step 4: Simplify right side
    442,070.40x = 143,962,545,911.76
  5. Step 5: Solve for x
    x = 143,962,545,911.76/442,070.40
  6. Step 6: Final answer
    x = 325,655.25

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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.