Home / 405,526.32-608,376.40-121,239.12

Finding the Fourth Proportional to 405,526.32, 608,376.40 and 121,239.12

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Solution

The fourth proportional to 405,526.32, 608,376.40 and 121,239.12 is: 181,884.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,526.32 : 608,376.40 = 121,239.12 : x
  2. Step 2: Convert to fraction form
    405,526.32/608,376.40 = 121,239.12/x
  3. Step 3: Cross multiply
    405,526.32x = 608,376.40 × 121,239.12
  4. Step 4: Simplify right side
    405,526.32x = 73,759,019,364.77
  5. Step 5: Solve for x
    x = 73,759,019,364.77/405,526.32
  6. Step 6: Final answer
    x = 181,884.67

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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.