Home / 228,531.08-315,372.04-127,929.08

Finding the Fourth Proportional to 228,531.08, 315,372.04 and 127,929.08

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Solution

The fourth proportional to 228,531.08, 315,372.04 and 127,929.08 is: 176,541.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,531.08 : 315,372.04 = 127,929.08 : x
  2. Step 2: Convert to fraction form
    228,531.08/315,372.04 = 127,929.08/x
  3. Step 3: Cross multiply
    228,531.08x = 315,372.04 × 127,929.08
  4. Step 4: Simplify right side
    228,531.08x = 40,345,254,934.92
  5. Step 5: Solve for x
    x = 40,345,254,934.92/228,531.08
  6. Step 6: Final answer
    x = 176,541.65

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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.