Home / 280,137.08-386,588.71-152,812.67

Finding the Fourth Proportional to 280,137.08, 386,588.71 and 152,812.67

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Solution

The fourth proportional to 280,137.08, 386,588.71 and 152,812.67 is: 210,881.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,137.08 : 386,588.71 = 152,812.67 : x
  2. Step 2: Convert to fraction form
    280,137.08/386,588.71 = 152,812.67/x
  3. Step 3: Cross multiply
    280,137.08x = 386,588.71 × 152,812.67
  4. Step 4: Simplify right side
    280,137.08x = 59,075,650,651.98
  5. Step 5: Solve for x
    x = 59,075,650,651.98/280,137.08
  6. Step 6: Final answer
    x = 210,881.23

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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.