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Finding the Fourth Proportional to 268,289.58, 370,238.40 and 153,567.66

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Solution

The fourth proportional to 268,289.58, 370,238.40 and 153,567.66 is: 211,922.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,289.58 : 370,238.40 = 153,567.66 : x
  2. Step 2: Convert to fraction form
    268,289.58/370,238.40 = 153,567.66/x
  3. Step 3: Cross multiply
    268,289.58x = 370,238.40 × 153,567.66
  4. Step 4: Simplify right side
    268,289.58x = 56,856,644,730.14
  5. Step 5: Solve for x
    x = 56,856,644,730.14/268,289.58
  6. Step 6: Final answer
    x = 211,922.67

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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.