Home / 285,225.96-393,488.22-171,985.80

Finding the Fourth Proportional to 285,225.96, 393,488.22 and 171,985.80

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Solution

The fourth proportional to 285,225.96, 393,488.22 and 171,985.80 is: 237,265.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,225.96 : 393,488.22 = 171,985.80 : x
  2. Step 2: Convert to fraction form
    285,225.96/393,488.22 = 171,985.80/x
  3. Step 3: Cross multiply
    285,225.96x = 393,488.22 × 171,985.80
  4. Step 4: Simplify right side
    285,225.96x = 67,674,386,307.28
  5. Step 5: Solve for x
    x = 67,674,386,307.28/285,225.96
  6. Step 6: Final answer
    x = 237,265.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.