Home / 286,725.12-430,253.58-118,214.04

Finding the Fourth Proportional to 286,725.12, 430,253.58 and 118,214.04

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Solution

The fourth proportional to 286,725.12, 430,253.58 and 118,214.04 is: 177,389.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,725.12 : 430,253.58 = 118,214.04 : x
  2. Step 2: Convert to fraction form
    286,725.12/430,253.58 = 118,214.04/x
  3. Step 3: Cross multiply
    286,725.12x = 430,253.58 × 118,214.04
  4. Step 4: Simplify right side
    286,725.12x = 50,862,013,916.26
  5. Step 5: Solve for x
    x = 50,862,013,916.26/286,725.12
  6. Step 6: Final answer
    x = 177,389.46

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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.