Home / 289,917.55-434,938.84-87,496.74

Finding the Fourth Proportional to 289,917.55, 434,938.84 and 87,496.74

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Solution

The fourth proportional to 289,917.55, 434,938.84 and 87,496.74 is: 131,263.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,917.55 : 434,938.84 = 87,496.74 : x
  2. Step 2: Convert to fraction form
    289,917.55/434,938.84 = 87,496.74/x
  3. Step 3: Cross multiply
    289,917.55x = 434,938.84 × 87,496.74
  4. Step 4: Simplify right side
    289,917.55x = 38,055,732,461.62
  5. Step 5: Solve for x
    x = 38,055,732,461.62/289,917.55
  6. Step 6: Final answer
    x = 131,263.98

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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.