Home / 286,734.72-430,153.80-118,161.22

Finding the Fourth Proportional to 286,734.72, 430,153.80 and 118,161.22

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Solution

The fourth proportional to 286,734.72, 430,153.80 and 118,161.22 is: 177,263.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,734.72 : 430,153.80 = 118,161.22 : x
  2. Step 2: Convert to fraction form
    286,734.72/430,153.80 = 118,161.22/x
  3. Step 3: Cross multiply
    286,734.72x = 430,153.80 × 118,161.22
  4. Step 4: Simplify right side
    286,734.72x = 50,827,497,526.79
  5. Step 5: Solve for x
    x = 50,827,497,526.79/286,734.72
  6. Step 6: Final answer
    x = 177,263.14

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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.