Home / 280,222.48-386,708.24-152,900.72

Finding the Fourth Proportional to 280,222.48, 386,708.24 and 152,900.72

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Solution

The fourth proportional to 280,222.48, 386,708.24 and 152,900.72 is: 211,003.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,222.48 : 386,708.24 = 152,900.72 : x
  2. Step 2: Convert to fraction form
    280,222.48/386,708.24 = 152,900.72/x
  3. Step 3: Cross multiply
    280,222.48x = 386,708.24 × 152,900.72
  4. Step 4: Simplify right side
    280,222.48x = 59,127,968,325.93
  5. Step 5: Solve for x
    x = 59,127,968,325.93/280,222.48
  6. Step 6: Final answer
    x = 211,003.66

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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.