Home / 280,240.45-386,741.16-152,923.03

Finding the Fourth Proportional to 280,240.45, 386,741.16 and 152,923.03

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Solution

The fourth proportional to 280,240.45, 386,741.16 and 152,923.03 is: 211,038.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,240.45 : 386,741.16 = 152,923.03 : x
  2. Step 2: Convert to fraction form
    280,240.45/386,741.16 = 152,923.03/x
  3. Step 3: Cross multiply
    280,240.45x = 386,741.16 × 152,923.03
  4. Step 4: Simplify right side
    280,240.45x = 59,141,630,012.91
  5. Step 5: Solve for x
    x = 59,141,630,012.91/280,240.45
  6. Step 6: Final answer
    x = 211,038.88

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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.