Home / 285,210.87-393,776.69-183,275.61

Finding the Fourth Proportional to 285,210.87, 393,776.69 and 183,275.61

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Solution

The fourth proportional to 285,210.87, 393,776.69 and 183,275.61 is: 253,039.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,210.87 : 393,776.69 = 183,275.61 : x
  2. Step 2: Convert to fraction form
    285,210.87/393,776.69 = 183,275.61/x
  3. Step 3: Cross multiply
    285,210.87x = 393,776.69 × 183,275.61
  4. Step 4: Simplify right side
    285,210.87x = 72,169,663,063.53
  5. Step 5: Solve for x
    x = 72,169,663,063.53/285,210.87
  6. Step 6: Final answer
    x = 253,039.67

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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.