Home / 280,237.08-386,729.46-152,914.80

Finding the Fourth Proportional to 280,237.08, 386,729.46 and 152,914.80

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Solution

The fourth proportional to 280,237.08, 386,729.46 and 152,914.80 is: 211,023.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,237.08 : 386,729.46 = 152,914.80 : x
  2. Step 2: Convert to fraction form
    280,237.08/386,729.46 = 152,914.80/x
  3. Step 3: Cross multiply
    280,237.08x = 386,729.46 × 152,914.80
  4. Step 4: Simplify right side
    280,237.08x = 59,136,658,030.01
  5. Step 5: Solve for x
    x = 59,136,658,030.01/280,237.08
  6. Step 6: Final answer
    x = 211,023.67

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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.