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Finding the Fourth Proportional to 276,860.40, 415,751.40 and 152,290.80

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Solution

The fourth proportional to 276,860.40, 415,751.40 and 152,290.80 is: 228,689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,860.40 : 415,751.40 = 152,290.80 : x
  2. Step 2: Convert to fraction form
    276,860.40/415,751.40 = 152,290.80/x
  3. Step 3: Cross multiply
    276,860.40x = 415,751.40 × 152,290.80
  4. Step 4: Simplify right side
    276,860.40x = 63,315,113,307.12
  5. Step 5: Solve for x
    x = 63,315,113,307.12/276,860.40
  6. Step 6: Final answer
    x = 228,689.67

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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.