Home / 286,726.12-430,255.08-118,215.04

Finding the Fourth Proportional to 286,726.12, 430,255.08 and 118,215.04

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Solution

The fourth proportional to 286,726.12, 430,255.08 and 118,215.04 is: 177,390.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,726.12 : 430,255.08 = 118,215.04 : x
  2. Step 2: Convert to fraction form
    286,726.12/430,255.08 = 118,215.04/x
  3. Step 3: Cross multiply
    286,726.12x = 430,255.08 × 118,215.04
  4. Step 4: Simplify right side
    286,726.12x = 50,862,621,492.40
  5. Step 5: Solve for x
    x = 50,862,621,492.40/286,726.12
  6. Step 6: Final answer
    x = 177,390.96

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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.