Home / 280,072.08-386,502.44-152,749.80

Finding the Fourth Proportional to 280,072.08, 386,502.44 and 152,749.80

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Solution

The fourth proportional to 280,072.08, 386,502.44 and 152,749.80 is: 210,796.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,072.08 : 386,502.44 = 152,749.80 : x
  2. Step 2: Convert to fraction form
    280,072.08/386,502.44 = 152,749.80/x
  3. Step 3: Cross multiply
    280,072.08x = 386,502.44 × 152,749.80
  4. Step 4: Simplify right side
    280,072.08x = 59,038,169,645.76
  5. Step 5: Solve for x
    x = 59,038,169,645.76/280,072.08
  6. Step 6: Final answer
    x = 210,796.34

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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.