Home / 228,536.08-315,362.28-127,920.40

Finding the Fourth Proportional to 228,536.08, 315,362.28 and 127,920.40

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Solution

The fourth proportional to 228,536.08, 315,362.28 and 127,920.40 is: 176,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,536.08 : 315,362.28 = 127,920.40 : x
  2. Step 2: Convert to fraction form
    228,536.08/315,362.28 = 127,920.40/x
  3. Step 3: Cross multiply
    228,536.08x = 315,362.28 × 127,920.40
  4. Step 4: Simplify right side
    228,536.08x = 40,341,269,002.51
  5. Step 5: Solve for x
    x = 40,341,269,002.51/228,536.08
  6. Step 6: Final answer
    x = 176,520.35

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1.5x scale

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.