Home / 288,827.13-398,702.75-175,689.21

Finding the Fourth Proportional to 288,827.13, 398,702.75 and 175,689.21

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Solution

The fourth proportional to 288,827.13, 398,702.75 and 175,689.21 is: 242,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,827.13 : 398,702.75 = 175,689.21 : x
  2. Step 2: Convert to fraction form
    288,827.13/398,702.75 = 175,689.21/x
  3. Step 3: Cross multiply
    288,827.13x = 398,702.75 × 175,689.21
  4. Step 4: Simplify right side
    288,827.13x = 70,047,771,172.33
  5. Step 5: Solve for x
    x = 70,047,771,172.33/288,827.13
  6. Step 6: Final answer
    x = 242,524.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.