Home / 290,070.35-434,977.07-155,101.67

Finding the Fourth Proportional to 290,070.35, 434,977.07 and 155,101.67

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Solution

The fourth proportional to 290,070.35, 434,977.07 and 155,101.67 is: 232,583.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,070.35 : 434,977.07 = 155,101.67 : x
  2. Step 2: Convert to fraction form
    290,070.35/434,977.07 = 155,101.67/x
  3. Step 3: Cross multiply
    290,070.35x = 434,977.07 × 155,101.67
  4. Step 4: Simplify right side
    290,070.35x = 67,465,667,018.31
  5. Step 5: Solve for x
    x = 67,465,667,018.31/290,070.35
  6. Step 6: Final answer
    x = 232,583.81

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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.