Home / 228,271.05-315,114.93-136,422.74

Finding the Fourth Proportional to 228,271.05, 315,114.93 and 136,422.74

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Solution

The fourth proportional to 228,271.05, 315,114.93 and 136,422.74 is: 188,323.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,271.05 : 315,114.93 = 136,422.74 : x
  2. Step 2: Convert to fraction form
    228,271.05/315,114.93 = 136,422.74/x
  3. Step 3: Cross multiply
    228,271.05x = 315,114.93 × 136,422.74
  4. Step 4: Simplify right side
    228,271.05x = 42,988,842,953.30
  5. Step 5: Solve for x
    x = 42,988,842,953.30/228,271.05
  6. Step 6: Final answer
    x = 188,323.67

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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.