Home / 280,769.38-387,460.80-153,444.94

Finding the Fourth Proportional to 280,769.38, 387,460.80 and 153,444.94

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Solution

The fourth proportional to 280,769.38, 387,460.80 and 153,444.94 is: 211,753.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,769.38 : 387,460.80 = 153,444.94 : x
  2. Step 2: Convert to fraction form
    280,769.38/387,460.80 = 153,444.94/x
  3. Step 3: Cross multiply
    280,769.38x = 387,460.80 × 153,444.94
  4. Step 4: Simplify right side
    280,769.38x = 59,453,899,208.35
  5. Step 5: Solve for x
    x = 59,453,899,208.35/280,769.38
  6. Step 6: Final answer
    x = 211,753.50

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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.